PERRY, Senior District Judge.
This is an appeal by petitioner Old Ben Coal Corporation [hereinafter “Old Ben”] from three separate decisions of respondent Secretary of the Interior [hereinafter “Secretary”] issued by the Secretary’s delegate, respondent Interior Board of Mine Operations Appeals, United States Department of the Interior [hereinafter “Board of Appeals” or “Board”], affirming in each instance the decision of an Administrative Law Judge [hereinafter “ALJ”] upholding the validity of an “imminent danger” order of withdrawal issued by a Federal coal mine inspector under Section 104(a) of the Federal Coal Mine Health and Safety Act of 1969 [hereinafter “Act”] pertaining to an underground bituminous coal mine owned and operated by Old Ben.
This appeal involves three separate cases with similar backgrounds. Each case began when an authorized representative of the Secretary, — a Federal coal mine inspector with the Mining Enforcement and Safety Administration [hereinafter “MESA”], — issued a withdrawal order closing down a portion of a coal mine owned and operated by Old Ben. The mines which are involved in this appeal are subject to the mandatory health and safety standards of the Act, and to periodic inspection by MESA inspectors. Pertinent facts in each of the three separate cases are set out below.
Appeal No. 74 — 1654. During a periodic inspection of Old Ben Mine No. 26 on November 6, 1972, Inspector James Adkins issued an “imminent danger” order of withdrawal which cited the following conditions:
Accumulations of loose coal and coal dust were present in rooms 27 and 28 of the 10, 11 and 12 north off the 16 east section. This loose coal and coal dust ranged in depths of from 4 to 18 inches in both rooms and was present from the conveyor belt inby to the faces of rooms 27 and 28, a distance of 140 feet in both rooms.
Loose coal and coal dust were also present at the shuttle-car dumping station in room 29 for a distance of 20 feet ranging in depth from 4 to 20 inches, and loose coal and coal dust were also present at the shuttle-car dumping station at the conveyor belt tail piece section in depths ranging from 6 to 16 inches for a distance of 24 feet.
A bolt was missing from the control panel of the No. 2138 shuttle-car. The outer insulation of the trailing cable to the No. 1587 shuttle-car had been damaged thus exposing the inner cables.
Adequate belt isolation was not being achieved in that the metal stopping at the 750 feet mark of entry 10 (located between entries 10 and 11) had been damaged and partially knocked down.
Inspector Adkins ordered mine personnel to withdraw from the “10, 11 and 12 north off the 16 east” section of the mine. The cited conditions were abated and the order of withdrawal was terminated on the same day it was issued. Old Ben subsequently filed an application for review of the withdrawal order under section 105(a) of the Act, 30 [29]*29U.S.C. § 815(a), contending that the cited conditions did not constitute an imminent danger because: (1) ventilation in the area was adequate at the time of inspection; (2) no measurable amounts of methane were present; (3) the allegedly missing bolt did not impair “permissibility” of the shuttle car as that term is defined in the Act; (4) the damage to the trailing cable was a temporary splice made in compliance with 30 C.F.R. 75.603; and (5) although there was improper belt isolation, the air passing through the belt entry did not reach the working face and did not create any condition of imminent danger.
A hearing on the merits was held on August 23, 1973. In his decision following the hearing, the ALJ found inter alia that: (1) MESA had established by a preponderance of the evidence that the conditions and practices cited' in the withdrawal order constituted an imminent danger within the meaning of Section 3(j) of the Act, 30 U.S.C. § 802(j); (2) although there may have been adequate ventilation and no measurable methane at the time of the inspection, Old Ben’s mine is a gassy mine which could liberate methane at any time; (3) the non-permissible shuttle car and damaged trailing cable were sources of ignition which in the presence of accumulations of inadequately rock-dusted loose coal and coal dust created a danger of a mine fire or explosion; and (4) Old Ben failed to prove by a preponderance of the evidence that the conditions and practices cited in the order did not constitute an imminent danger within the meaning of Section 3(j) of the Act, 30 U.S.C. § 802(j). Accordingly, the ALJ concluded that the withdrawal order was properly issued and dismissed Old Ben’s application for review. The Board of Appeals affirmed the ALJ’s decision, concluding that the decision was clearly supported by the Board’s previous decisions in Eastern Associated Coal Corporation,1 and Freeman Coal Mining Corporation.2 Old Ben thereafter filed its petition for review in this Court.
Appeal No. 74-1655. On September 5, 1972, during an inspection of Mine No. 21, Inspector Harry Greiner issued an “imminent danger” withdrawal order which cited the following conditions:
Coal float dust up to 4 inches in depth and a distinct black was deposited on rock dusted surfaces along the 56 south belt conveyor entry from the head roller to the 300 foot surveyor’s tag, also around the belt drive and in the connecting crosscuts. Loose coal and coal dust accumulations were beneath the belt, and up to 2 feet in depth along the east side of 56 south belt for the length of the belt a distance of approximately 1,000 feet; float coal dust under and around the belt tail and outby for 50 feet up to 3 inches in height.3
These conditions were recorded in the mine examiner’s book for 7 previous shifts.
Room Nos. 37 and 38 had accumulations of loose coal and dust along ribs and roadways from 3 to 6 inches in depth, and from the room neck inby a distance of 150 feet; rock dust applications were obviously inadequate; rock dust had been applied by hand and little or no rock dust was applied to the roof, ribs and floor generally. Samples were taken to substantiate the findings.
The cited conditions were abated and the withdrawal order was terminated the day following the issuance thereof. Old Ben filed an application for review of the order, contending that the cited conditions did not constitute imminent danger as defined in Section 3(j) of the Act. A hearing before ALJ Michels was held on December 4, 1973. In his decision [30]*30following the hearing, the ALJ found in pertinent part: (1) although there was some dispute as to the amount of the accumulation of loose coal and coal dust, there was no dispute that an accumulation did exist; (2) although there had never been a sudden release of methane in this mine, it is a gassy mine; (3) the accumulations under the belt were high enough to support the inspector’s conclusion that a belt fire could occur; and (4) in the presence of the combustible materials observed, any fire or explosion would become a grave hazard. Accordingly, the ALJ concluded that an imminent danger had existed; that the inspector was thus justified in issuing the withdrawal order; and that Old Ben had failed to establish by a preponderance of the evidence that an imminent danger had not existed. The ALJ dismissed Old Ben’s application for review. The Board of Appeals affirmed the decision of the ALJ, stating that by applying the test of imminent danger enunciated in Eastern Associated Coal Corporation, supra, the Board concluded that the cited conditions existing along the belt line supported the inspector’s conclusion that an imminent danger existed. Old Ben thereafter filed the instant petition.
Appeal No. 74 — 1656. On October 4, 1972, after an inspection of Mine No. 26, Inspector Mike Krisfaluzy issued an “imminent danger” withdrawal order which cited the following conditions:
Accumulations of loose coal and coal dust were present along the ribs and floors starting from the 1550-foot station to inby room 38, ranging from 3 to 15 inches in depth for a distance of 67 feet, and from the tail sections to inby the tail sections for a distance of 165 feet including all crosscut ranging from 3 to 10 inches in depth. Rock dust was inadequate from the mouth of rooms 37 and 38 for a distance of 50 feet in room 37 and a distance of 42 feet in room 38. Rock dust was inadequate from the tail section to inby for a distance of 165 feet including all crosscuts. The 31 south haulage road was inadequately rock dusted for a distance of 1350 feet in the 31, 32 and 33 South sections off the 6 main east entries.
Two portable oil cans did not have caps to enclose the containers in the 31, 32, and 33 south section off the 6 main east entries. 5 dust samples were taken to substantiate the findings.
The cited conditions were abated and the withdrawal order was terminated the following morning. Old Ben filed an application for review of the order, contending that the conditions or practices cited did not constitute imminent danger as defined in Section 3(j) of the Act. A hearing before ALJ Koutras was held on August 22, 1973. In his decision following the hearing, the ALJ found, inter alia, that the inspector’s findings as to the loose coal and coal dust accumulations were supported by the record, and that the energized equipment and the belt tail piece were ignition sources. Based upon the foregoing, the ALJ concluded that the conditions cited constituted an imminent danger; that the withdrawal order was properly issued; and that Old Ben had failed to meet its burden of establishing that the conditions cited in the order did not constitute an imminent danger. Accordingly, the ALJ dismissed Old Ben’s application for review. The Board of Appeals affirmed the ALJ’s decision, stating that the decision of the ALJ is clearly supported by Eastern Associated Coal Corporation, supra. Old Ben thereafter filed this petition.
We are called upon to decide essentially three issues: (1) whether the Board of Appeals correctly interpreted the term “imminent danger” as used in Section 104(a) of the Act, 30 U.S.C. § 814(a); (2) whether, given the proper interpretation of “imminent danger”, there was substantial evidence to support the Secretary’s findings that an imminent danger existed in the petitioner’s mines; and (3) whether the Secretary violated the Administrative Procedure Act by assigning the burden of proof to the petitioner in [31]*31the administrative review proceedings below.
Legislative History
Old Ben asserts that “Section 104(a) of the Act, 30 U.S.C. § 814(a), entrusts to MESA inspectors the awesome power to peremptorily shut down businesses within an industry of critical national importance without notice or hearing if there presently exists, in the inspector’s sole opinion, an ‘imminent danger’ ”. (Brief of Petitioner at 17). This assertion is correct, for the primary concern of Congress in enacting the Act is articulated in the following words of Section 2(a), 30 U.S.C. § 801(a): Congress declares that—
(a) the first priority and concern of all in the coal mining industry must be the health and safety of its most precious resource — the miner;
The need for the Act was plainly stated by Secretary of the Interior Walter J. Hickel, who testified as follows before the General Subcommittee on Education and Labor:
Clearly, if we are to have any impact on the day-to-day accidents that cause most of our coal mine injuries and deaths, we need a law that gives broader enforcement power to the inspector and thereby provides stronger incentives for management and labor to think safety at all times. We must reduce injuries and eliminate the accidents that kill miners by the ones, twos, or threes as well as prevent major disasters.4
Clearly, the inspector is in a precarious position. He is entrusted with the safety of miners’ lives, and he must ensure that the statute is enforced for the protection of these lives. His total concern is the safety of life and limb. On the other hand, the coal mine operator is principally concerned with dollars and profits. We must support the findings and the decisions of the inspector unless there is evidence that he has abused his discretion or authority. We find no such evidence here.
Imminent Danger
Old Ben strongly contends that in each of the three aforedescribed cases the conditions and practices cited in the orders of withdrawal failed to rise to the level of “imminent danger”. The thrust of the argument is that the Board of Appeals construed Section 104(a) of the Act, 30 U.S.C. § 814(a), to permit the closure of mines when there is only a remote possibility of danger, not a reasonable likelihood. (Brief of Petitioner at 43). Old Ben contends, in short, that the term “imminent danger” was intended to apply to situations involving actual, immediate danger.
Old Ben contends at page 23 of its brief:
The legislative history of the Federal Coal'Mine Health and Safety Act of 1969 clearly establishes that Congress did not intend that the mere presence of the most prevalent substances in a mine, loose coal and coal dust, serve as a basis for the issuance of a withdrawal order for imminent danger. In this regard, for instance, Representative Erlenborn of Illinois stated:
There is no imminent danger to the health or safety of miners because of an extra large concentration of dust in the mine. Many people relate the dust standards to such things as concentration of methane. [B]ut a concentration of coal dust in a mine constitutes no imminent danger. 115 Cong.Rec. 31,586 (1969) (Remarks of Rep. Erlenborn).
The above-quoted remarks of Congressman John Erlenborn concerning the hazards of coal dust are immaterial to this appeal. A full review of the source cited [32]*32by Old Ben shows that these remarks were made in connection with the interim mandatory health standards and the problems of respirable dust and pneumoconiosis, for immediately following the above-quoted remarks, Congressman Erlenborn goes on to say:
The fact is, a person would have to be subjected day in and day out to exposure over 1-5 or 20 years or more before evidence of pneumoconiosis would even begin to be ascertainable by X-ray and lung function tests. 115 Cong.Rec. 31,586 (1969).
Thus it is clear that Congressman Erlenborn’s remarks were never intended to show, — as Old Ben misleadingly contends, — that accumulations of loose coal and coal dust were not imminently dangerous as factors which could contribute to mine fires or explosions.
Less than a year ago, in Freeman Coal Mining Co. v. Interior Bd. of Mine Op. App., 504 F.2d 741 (7th Cir. 1974), we decided that the Board of Appeals had correctly interpreted the term “imminent danger” when it upheld the validity of a withdrawal order. There, as in Appeal No. 74-1655 here, the withdrawal order was based upon a finding by the inspector that an accumulation of float coal dust constituted an “imminent danger” within the meaning of the Act. The Board found that the float coal dust accumulation constituted an imminent danger. The dust was not in suspension, but this fact was discounted. Among the factors which the Board considered determinative of the issue were the large area covered — a length of 7200 feet— and the inherently gassy quality of the mine. In its decision the Board stated that “imminent danger”, as used in the Act, relates to “the proximity of the peril to life and limb”. The test for an imminent danger was phrased as follows:
“[Wjould a reasonable man, given a qualified inspector’s education and experience, conclude that the facts indicate an impending accident or disaster, threatening to kill' or to cause serious physical harm, likely to occur at any moment, but not necessarily immediately? The uncertainty must be of a nature that would induce a reasonable man to estimate that, if normal operations designed to extract coal in the disputed area proceeded, it is at least just as probable as not that the feared accident or disaster would occur before •elimination of the danger.”
Freeman, the petitioner, contended that the Board misinterpreted the term “imminent danger” and that the term “imminent danger” applies only to “extreme and unusual situations where the conditions are such that a danger exists which has an immediate threat to cause injury or death”, where “a catastrophe [is] near or present”.
In reviewing the purpose, the legislative history, and the wording of the Act, we quoted the following passage from the Congressional Record:
The definition of an “imminent danger” is broadened from that in the 1952 act in recognition of the need to be concerned with any condition or practice, naturally or otherwise caused, which may lead to sudden death or injury before the danger can be abated. It is not limited to just disastrous type accidents, as in the past, but all accidents which could be fatal or nonfatal. to one or more persons before abatement of the condition or practice can be achieved. 115 Cong.Rec. 39985 (1969).
In Freeman, we noted' that the language of the Act itself supported the Board’s interpretation, for the Act calls for the “immediate” withdrawal of all persons when an “imminent” danger is found to exist, and only the withdrawal action is phrased in terms of “immediate”. We said that this is entirely reasonable since if withdrawal could not be ordered unless the danger, too, was “immediate”, the expected accident would, likely as not, occur during the withdrawal, thereby injuring miners. Moreover, we noted that under Section 104(d) of [33]*33the Act, 30 U.S.C. § 814(d), persons necessary to eliminate the danger are permitted to remain in the affected area for that purpose, and that it is questionable whether anyone would remain in a mine for any purpose if there was an “immediate” danger. We then concluded:
A reading of the entire section in light of the Act’s humane purpose, makes clear that the Board has correctly construed “imminent danger” as being a situation in which a reasonable man would estimate that, if normal operations designed to extract coal in the disputed area should proceed, it is at least just as probable as not that the feared accident or disaster would occur before elimination of the danger. [Footnote omitted.] 504 F.2d at 745.
Thus it is clear that in Freeman we rejected the contention that “imminent danger” was intended to apply only to situations involving immediate danger. We see no reason to deviate now from our holding in Freeman.
As for Old Ben’s contention that the test for “imminent danger” should be limited to a “reasonable likelihood” of danger, we note that a similar contention was recently rejected by the Court of Appeals for the Fourth Circuit in Eastern Associated Coal Corp. v. Interior Bd. of Mine Op. App., 491 F.2d 277 (4th Cir. 1974), where the petitioner sought review of a decision by the Board sustaining an order of withdrawal, and the dispute revolved about what is an “imminent danger”. The petitioner Eastern contended, as Old Ben contends here, that a danger is imminent only if there is a reasonable likelihood that it will result in injury before it can be abated. The Court disagreed, accepting instead the Board’s interpretation. Said the Court:
The Secretary determined, and we think correctly, that “an imminent danger exists when the condition or practice observed could reasonably be expected to cause death or serious physical harm to a miner if normal mining operations were permitted to proceed in the area before the dangerous condition is eliminated.” 491 F.2d at 278.
In Appeal No. 74-1654, both the ALJ and the Board applied the Freeman test to determine whether a valid imminent danger order was issued. In Appeal No. 74-1655, the AU applied the Freeman test while the Board applied the test enunciated by the Board in Eastern Associated Coal Corporation, 2 I.B.M.A. 128, which test was upheld in Eastern Associated Coal Corp. v. Interior Bd. of Mine Op. App., supra. In Appeal No. 74-1656, the ALJ adopted both the Freeman and Eastern tests, and the Board found that the ALJ’s decision was clearly supported by the Eastern test.
For all of the foregoing reasons we conclude that the Board of Appeals correctly interpreted the term “imminent danger” in the three cases before us.
Sufficiency of the Evidence
This Court must affirm the Board’s decisions if they are supported by substantial evidence. Section 106(b) of the Act, 30 U.S.C. § 816(b). We conclude that the testimony of the witnesses in each of the three cases before us furnishes substantial evidence to support the Board’s decisions that an imminent danger existed when the orders of withdrawal were issued.
In Appeal No. 74-1654, the ALJ found that accumulations of inadequately rock-dusted loose coal and coal dust existed; that the absence of a bolt from the control panel of a shuttle car, together with the existence of a damaged trailing cable, constituted sources of ignition; that coal was being mined; and that the coexistence of the accumulations of coal and coal dust and the sources of ignition created a danger of fire or explosion.
Old Ben contends that accumulations of coal and coal dust per se cannot create an imminent danger, and that there was no imminent danger because the damaged trailing cable and the ab[34]*34sence of the bolt did not constitute an actual ignition source. A similar argument was rejected by this Court in Freeman, supra, where the petitioner contended that there was neither suspension of float coal dust in air, nor ignition, nor a concentration of methane gas at the time the withdrawal order was issued. We said:
The lack of suspension and ignition indicates only that an explosion might not have occurred immediately.
Moreover, the lack of methane gas in the mine during the time of the inspection is not determinative. The evidence indicated only that the ignition of methane gas is the most common cause of float coal dust explosions, not that it is the only source of an ignition. . . . 504 F.2d at 746-747.
We agree with the respondents that when dangerous accumulations of coal dust exist, an inspector should not have to wait until a source of ignition has caused a fire or explosion before he takes corrective action, and that the inspector in this case could reasonably conclude that there was a reasonable expectancy that an inadvertent ignition could have occurred before the accumulations could have been abated and repairs could have been made to the shuttle car and trailing cable.
In Appeal No. 74-1655, testimony of the witnesses supported the following findings of the ALJ: inadequately rock-dusted accumulations of coal, coal dust, and float coal dust existed along 1300 feet of a conveyor beltway; some of the accumulations lay under the belt line and were of sufficient depth for the in-, spector reasonably to expect that a belt fire could occur before the accumulations could be cleaned up; Mine No. 21 has been classified as a “gassy” mine. Evidence was disputed on the question of whether or not the belt was running at the time the accumulations were discovered. The ALJ discounted this fact, however, concluding that even if the belt was stopped the inspector would have to ensure that it remained stopped until the accumulations were removed.
Old Ben contends that there was no imminent danger because: (1) there was no actual ignition source; (2) there was no appreciable methane present; and (3) there was no evidence that the belt or the belt rollers had “heated up”. Our decision in Freeman, supra, disposes of the first two contentions. As for the third contention, we think that an inspector should not wait until the rollers rub the coal to the point where friction creates a spark before taking corrective action.
In Appeal No. 74-1656, the following evidence was adduced: inadequately rock-dusted accumulations of loose coal and coal dust were present in Mine No. 26; Mine No. 26 is a “gassy” mine and emits methane freely; although mining operations had not started at the time the withdrawal order was issued, men were present and working; energized equipment, — including a bobcat front-end loader and a belt tail piece, —were present, and the bobcat loader was running; the belt tail piece was in contact with the aforementioned accumulations. The ALJ found that the energized equipment, particularly the bobcat loader and the belt tail piece, constituted possible sources of ignition, and that these sources of ignition, together with the existence of the accumulations of inadequately rock-dusted loose coal and coal dust, created a danger of explosion or fire.
Old Ben contends that the withdrawal order was issued solely on the basis of deposits of loose coal and coal dust, and that neither the inspector nor the ALJ found any actual ignition sources which, together with the deposits, could create the hazard of fire or explosion cited as the basis for the withdrawal order. Again, this Court’s decision in Freeman disposes of these contentions.
Burden of Proof
Section 105(a)(1) of the Act, 30 U.S.C. § 815(a)(1), provides in pertinent part:
[35]*35REVIEW BY THE SECRETARY
Sec. 105. (a)(1) An operator issued an order pursuant to the provisions of section 104 of this title, or any representative of miners in any mine affected by such order or by any modification or termination of such order, may apply to the Secretary for review of the order, may apply to the Secretary for review of the order within thirty days of receipt thereof or within thirty days of its modification or termination.
******
Upon receipt of such application, the Secretary shall cause such investigation to be made as he deems appropriate. Such investigation shall provide an opportunity for a public hearing, at the request of the operator or the representative of miners in such mine, to enable the operator and the representative of miners in such mine to present information relating to the issuance and continuance of such order or the modification or termination thereof or to the time fixed in such notice. The filing of an application for review under this subsection shall not operate as a stay of any order or notice. [Emphasis added.]
In implementation of the foregoing, the Secretary promulgated 43 C.F.R. § 4.587, which reads in pertinent part:
In proceedings brought under the Act, the applicant, petitioner or other party initiating the proceedings shall have the burden of proving his case by a preponderance of the evidence.
Old Ben strongly contends that the above-quoted regulation violates the Administrative Procedure Act (5 U.S.C. § 501 et seq.) in that:
(1) Section 105(a)(2) of the Act, 30 U.S.C. § 815(a)(2), requires that the public hearing which a coal mine operator may request under Section 105(a)(1), 30 U.S.C. § 815(a)(1), shall be subject to section 554 of title 5 of the United States Code, which in turn requires that the hearing shall be in accordance with section 556 of title 5.
(2) Section 556(d) of title 5 provides in pertinent part as follows:
(d) Except as otherwise provided by statute, the proponent of a rule or order has the burden of proof. .
(3) There is no provision in the Federal Coal Mine Health and Safety Act which requires the mine operator to carry the burden of proof in a review of summary agency action.
Respondents on the other hand argue that the legislative history of the Act and the specific language of Section 105(a)(1) of the Act (30 U.S.C. § 815(a)(1)) authorize the Secretary to require that the petitioner bear the burden of proof.
As we pointed out in the Legislative History section of this opinion, the primary concern of Congress in enacting the Act was the health and safety of the miner. We believe that it was the intent of Congress that coal mine operators would not carry on mining operations in the face of imminent danger. Both the legislative history of the Act and the specific language of Section 2(e) of the Act furnish ample evidence of the expectation of Congress that coal mine operators, on their own initiative, would cease routine operations in the face of imminent danger.
In delivering the Conference Report on S.2917 (Federal Coal Mine Health and Safety Act) to the Senate, Senator Harrison A. Williams, Jr., Chairman of the Subcommittee on Labor of the Senate Committee on Labor and Public Welfare, and a principal sponsor of S.2917, made the following statement:
It should be emphasized at this point that the operator has a duty under the Act to withdraw persons from a mine or area thereof affected by an imminent danger without wait[36]*36ing for an inspector to order it. [Emphasis added.]5
In line with this statement, the Congress in Section 2(e) of the Act placed the primary responsibility for mine safety upon the mine operators. Section 2(e) (30 U.S.C. § 801(e)) reads in pertinent part as follows:
(e) The operators of such mines . have the primary responsibility to prevent the existence of such [unsafe and unhealthful] conditions and practices in such mines;
Respondents argue that Section 556(d) of title 5 specifically exempts from its provisions a statute which assigns the burden of proof on parties within its jurisdiction, and that Section 105(a)(1) of the Act, 30 U.S.C. § 815(a)(1), fits within that exemption because it specifically places on the operator who requests a public hearing the burden “to present information relating to the issuance and continuance of such order [Section 104(a) withdrawal order]”. We think that an examination of the statutory scheme as a whole, as well as a review of the legislative history of the Act as discussed above, supports respondents’ argument that the Secretary’s regulation is consistent with the intent of Congress to place upon the mine operator the primary responsibility for the safety of the miners. As respondents logically say, it is, after all, his mine and he had the best knowledge of its condition. This is a consideration which has often been advanced as a special test for solving a limited class of cases, i. e., the burden of proving a fact is on the party who presumably has peculiar means of knowledge enabling him to prove its falsity, if it is false. 9 Wigmore, Evidence § 2486 (3d ed.). Thus, as Circuit Judge Murrah has said, the incidence of the burden of proof is primarily a matter of policy based on experience. Denning Warehouse Co. v. Widener, 172 F.2d 910, 913 (10th Cir. 1949).
Finally, we recognize the venerable principle that, when faced with a problem of statutory construction, courts give great deference to the interpretation of the administrator who is charged with the administration or enforcement of the statute. See, e. g., Udall v. Tallman, 380 U.S. 1, 16, 85 S.Ct. 792, 13 L.Ed.2d 616 (1965), reh. denied, 380 U.S. 989, 85 S.Ct. 1325, 14 L.Ed.2d 283. Here the interpretation of the Sec retary, who under Section 30 U.S.C. § 957 is authorized to issue such regulations as he deems appropriate to carry out any provision of the Act, is clearly set forth in 43 C.F.R. § 4.587. Although we recognize that an administrative interpretation is not controlling, nonetheless the Secretary’s interpretation is entitled to great weight and should be followed unless there are compelling indications that it is wrong. See Red Lion Broadcasting Co. v. FCC, 395 U.S. 367, 381, 89 S.Ct. 1794, 23 L.Ed.2d 371 (1969). For the reasons set forth above, we find no compelling indications that the Secretary was wrong in interpreting the Act to place the burden of proof on the petitioner.
In any event, even if we assume arguendo that the Secretary did err in assigning the burden of proof to the petitioner, such error would not have made any real difference in the outcome of these three cases, for the evidence is such that if the burden of proof had been imposed upon the MESA, it would have been able to satisfy the burden of proving, by a preponderance of the evidence, the existence of an imminent danger.
When Congress acted to vest inspectors with power to order a coal mine owner immediately to withdraw employees from a mine when the inspectors find imminent danger of a disaster existing, Congress was fully informed that the coal mine owner would suffer economic loss as a result of correcting the dangerous conditions before permitting the employees to return to work. Con[37]*37gress also well knew that gas and fire do not wait to cause explosions while notices are served and hearings are held. Congress meant for inspectors to have the authority it gave to them. It did not intend, when a fire alarm is sounded, that the authority to answer that alarm be withheld pending resolution of the assertion of a constitutional claim for notice and a full dress hearing. The costs to coal mine owners in dollars is inconsequential compared to the risk of the loss of lives of the coal miners.
For all of the foregoing reasons, the decision of the Board of Appeals in each of these three consolidated cases is Affirmed.