Williams, J:
This case comes before us on appeal from three condemnation and confiscation orders entered by the Iosco Circuit Court against the defendants for acts of illegal fishing. The issues raised on appeal are: 1) does § lb(2) of Commercial Fishing Law,1 which authorizes the Director of Conservation (Director of Natural Resources) to place restrictions on commercial fishing licenses, constitute an unconstitutional delegation of legislative authority?; 2) does Rule 3 of Order No. 17 (revised)2 exceed the authority granted the Department of Natural Resources by the Legislature in the Commercial Fishing Law?; and 3) did the warrantless search of defendants’ vessel constitute an unreasonable search in violation of the Fourth Amendment to the United States Constitution and article 1, § 11 of the Michigan Constitution?
[305]*305We find that § lb(2) of the Commercial Fishing Law does not constitute an unconstitutional delegation of legislative authority, nor does Rule 3 of Order No. 17 (revised) exceed the DNR’s authority as granted by the Legislature. However, we do find that the conservation officers conducted an illegal search in violation of the Constitution, and as a result defendants are entitled to the return of their vessel, which was wrongfully seized.
I — Facts
In 1972 the DNR issued defendants a commercial fishing license. In accordance with DNR Order No. 17, Rule 33 and other DNR regulations, the license restricted the number and types of nets to be used by the defendants in certain areas or "zones” of the Great Lakes. The defendants protested one restriction in particular which limited the use of gill nets to those with mesh sizes of 8 inches or more. Defendants had been accustomed [306]*306to using gill nets with a mesh size of 2-1/2 to 2-7/8 inches.4
Contrary to the provisions of the license, defendants continued to use the 2-1/2-inch mesh gill nets.5 On three separate occasions DNR officials after observing defendants conducting illegal fishing activities seized fish and/or equipment in the possession of the defendants.
The first seizure took place on May 11, 1972. After observing defendants’ activities and obtaining a search warrant, DNR officials boarded defendants’ vessel and seized a quantity of chubs (a species of protected fish). The next day officers seized a buoy and ten boxes of gill nets from the open waters of Lake Huron in an area where the defendants had been observed tending their nets.
On October 3, 1972, the third seizure was made after DNR officials had conducted the search which is now being challenged. The day before the search and subsequent seizure, conservation officers, suspecting that defendants were again violating provisions of their license, set up an observation post on the shores of Lake Huron and at dusk observed what apparently was the defendants’ vessel setting nets. Unable to further investigate due to darkness, they set out the following morning to examine the area. By 7:30 a.m., October 3, 1972, the officers had established the presence of illegal gill nets which belonged to the defendants. After marking these nets, the officers withdrew from the area but kept it under surveillance. In [307]*307the early evening DNR officials observed the defendants’ vessel apparently in the process of tending its nets and then heading for its mooring at the Oscoda docks. At approximately 8:45 p.m. that evening officials sought permission to search the moored vessel. After acknowledging that they did not have a search warrant and being refused permission to conduct a search, they broke into the vessel with an axe. Upon discovering a quantity of fish and the previously marked nets, the vessel and its contents were seized.
The Iosco Circuit Court issued condemnation and confiscation orders against the defendants. The Court of Appeals affirmed on May 2, 1974. 53 Mich App 192; 218 NW2d 813. On October 15, 1975, we granted leave to appeal. 392 Mich 809.
II — Section lb(2) not Unconstitutional Delegation
The threshold question in this case is whether § lb(2) constitutes an unconstitutional delegation of legislative authority. Section lb(2) provides:
"In addition to the requirements of this act and rules promulgated pursuant to this act, the license issued by the director of conservation may contain provisions:
(a) Fixing the amount of fish to be taken by species and kind.
(b) Designating the areas in which the licensee shall be permitted to fish.
(c) Specifying the season when and the depths where the licensee may conduct his commercial fishing operations.
(d) Specifying the methods and gear which the licensee shall use.
(e) Specifying other conditions, terms and restrictions which are deemed to be necessary in carrying out the provisions of this act, including but not limited to the [308]*308right to inspect the licensee’s fishing operations in the waters, on board or ashore.”
Defendants maintain that this provision marks a departure from the prior practice of the Legislature to maintain a commercial fishing law by modifying the original act (1929 PA 84) by detailed amendments6 and since it provides no guidelines it must be regarded as an unconstitutional delegation of legislative authority.
The rule with regard to delegation was simply and aptly stated in the leading case of Locke’s Appeal, 72 Pa 491, 498-499 (1873):
"The legislature cannot delegate its power to make a law; but it can make a law to delegate a power to determine some fact or state of things upon which the law makes, or intends to make, its own action depend. To deny this would be to stop the wheels of government.”
The difficulty, as this Court on a previous occasion suggested, "is in determining whether the limits [on the exercise of discretion conferred on the administrative official] are sufficiently defined to avoid delegation of legislative powers”. Argo Oil Corp v Atwood, 274 Mich 47, 52; 264 NW 285 (1935).
In making this determination whether the statute contains sufficient limits or standards we must be mindful of the fact that such standards must be sufficiently broad to permit efficient administration in order to properly carry out the policy of the Legislature but not so broad as to leave the people [309]*309unprotected from uncontrolled, arbitrary power in the hands of administrative officials.
While no hard and fast rule exists for determining whether a given statute has provided sufficient standards, a number of guiding principles have evolved in Michigan jurisprudence to assist in making a determination in this case.
First, the act in question must be read as a whole; the provision in question should not be isolated but must be construed with reference to the entire act. Argo Oil Corp v Atwood, supra, 53.
Second, the standard should be "as reasonably precise as the subject matter requires or permits”. Osius v St Clair Shores, 344 Mich 693, 698; 75 NW2d 25; 58 ALR2d 1079 (1956).7
The preciseness of the standard will vary with the complexity and/or the degree to which subject regulated will require constantly changing regulation.8 The "various” and "varying” detail associated with managing the natural resources has led to recognition by the courts that it is impractical for the Legislature to provide specific regulations and that this function must be performed by the designated administrative officials. People v Soule, 238 Mich 130, 140; 213 NW 195 (1927). See United States v Grimaud, 220 US 506; 31 S Ct 480; 55 L Ed 563 (1910).
Third, if possible the statute must be construed in such a way as to "render it valid, not invalid”, as conferring "administrative, not legislative” power and as vesting "discretionary, not arbitrary, authority”. Argo Oil Corp v Atwood, supra, 53.
[310]*310III — Application of Principles
The first principle requires that the statute in question be viewed in its entirety. Section lb(2) read together with lb(l) provides a proper framework in which the Director of Natural Resources is authorized to act. Section lb(l) provides:
"Notwithstanding the provisions of this or any other act, the director of conservation, when in his opinion it is necessary for the better protection, preservation, management, harvesting and utilization of the fisheries in the waters described in section 1 may limit the number of fishing licenses to be issued under the provisions of this act and fix and determine the qualifications of such licensees. In determining the number of licenses that the director of conservation issues during any license year, he shall take into consideration the number of persons holding such licenses, the number of licensees needed to harvest the fish known or believed to be harvestable, the capacity of the boats and equipment owned and used by licensees to effectuate such harvesting, and any other facts which may bear upon the allowing of a limited number of licensed persons to engage in commercial fishing in an economical and profitable manner. In determining the qualifications of the licensees, the director of conservation shall consider the kind, nature and condition of the boats and fishing equipment and gear to be used by the applicant, the years of experience the applicant has had in commercial fishing and the quantity and kinds of fish that the applicant has caught during the previous 5 years and such other facts which may assist him in determining that the applicant is capable to engage in commercial fishing in a proper and profitable manner and will comply with the laws applicable to commercial fishing.” MCLA 308.1b; MSA 13.1491(2). (Emphasis added.)
The legislative policy and. standards to guide the director are apparent, to wit: to protect and preserve the fisheries of this state and to allow the [311]*311taking of fish conditioned upon a grant of permission in the form of a license, but only when such taking will not disrupt the primary goal of protection and preservation. The director has been given the authority to factually determine the nature and degree of commercial fishing, in terms of species, location, and types of fishing gear, which may be allowed without affecting the goal of protection and preservation. These statutory provisions insure that the will of the Legislature will be given substance and effect as a result of the director’s factual determinations.
Turning to the second principle, we conclude that the standard provided in the Commercial Fishing Law, while somewhat general, is "as reasonably precise as the subject matter requires or permits”.
As suggested above, courts have recognized that the management of natural resources is a difficult and complex task. This is particularly true in the management of fisheries. In order to have proper management a measure of flexibility must be provided the director in dealing with numerous species of fish, their habits, their constantly changing environment, their response to interaction between species, their population growth and decline in various waters and the many other biological considerations involved.
It must be remembered that fish are recognized as the property of the state, People v Soule, supra, 139; Aikens v Department of Conservation, 387 Mich 495-502; 198 NW2d 304 (1974), and as such the Legislature could conceivably prohibit all commercial fishing activity. However, rather than adopt such an extreme course of action, the Legislature has provided for effective management by giving the director limited discretion, and not [312]*312arbitrary power, to regulate the commercial taking of fish.
In People v Soule, supra, this Court upheld similar enabling legislation relating to the Department of Conservation.9 The crucial language of that act reads as follows:
"The commission of conservation of the department of conservation of this state shall, in accordance with the provisions of this act, have power to regulate the taking or killing of all fish, game and fur-bearing animals and game birds protected by the laws of this state, and may suspend or abridge the open season provided by law for the taking or killing of any such fish, animals or game birds in any designated waters or area of this state, whenever in the opinion of said commission of conservation it becomes necessary to assist in the increased or better protection of such físh, game or fur-bearing animals or game birds, or of any particular kinds or species of the same, which may in the opinion of said commission be threatened from any cause or causes with depletion or extermination in said waters or area, and for the purpose of such regulation, suspension, or abridgment, said commission of conservation is hereby empowered to make and promulgate any and all orders and regulations necessary to carry out the provisions of this act and as in this act provided, on the recommendation of the director of conservation after a thorough investigation has been made by him.” (Emphasis added.)
Defendants seek to distinguish Soule on the basis that the authority conferred on the Conservation Commission was restricted to emergency situations where the species of wildlife in the words of the statute were "in danger of depletion or extermination”. We do not find this distinction to be controlling. The state is not bound to wait until our natural resources are near extinction [313]*313before it can properly authorize the Director of Natural Resources to act.
In upholding the constitutionality of § lb(2) we are mindful as well of the third principle that if possible, the statute must be construed as valid. While we are sympathetic to the difficulties experienced by defendants and other commercial fishermen with the changing, and frequently limiting, of their operations by regulations, we cannot say that the act in question constitutes an unconstitutional delegation of authority.10 Nor do we view § lb(2) as permitting the Director of Natural Resources to act in an arbitrary and discriminatory fashion.
However, while we find that the Commercial Fishing Law has given the Director of Natural Resources reasonable discretion to act in accordance with legislatively provided guidelines, and not with power to act arbitrarily, we are mindful that authority, although properly delegated, may be subject to abuse. That is why the actual development of specific regulations by those charged with the task by the Legislature must be accompanied with due process protection. Such protection is necessary to minimize the opportunity for abuse of discretion as well as to adequately protect the interests of those affected by the regulations.
In those cases where authority is delegated to the administrative body, particularly where the subject matter dictates that the legislative standards provided are somewhat general, this Court would take a dim view of such delegation if adequate opportunity to intervene in the administrative rule-making procedure were not provided.
In this case it appears that the DNR provided [314]*314notice and hearings both in the development of general fishing regulations and for the defendants when they contested particular restrictions placed upon their licenses.11
IV — Rule 3 Does not Exceed DNR’s Authority
Defendants argue that while § lb(2) authorizes the Director of the DNR to include restrictions on commercial fishing licenses, the section does not authorize the director to place restrictions which "further refine, limit, abridge, repeal or replace the restrictions enacted by the Legislature”. DNR Order No. 17, Rule 3, which inter alia prohibits the use of gill nets with mesh sizes less than 8 inches in certain fishing zones and which served as the basis for the restrictions on defendants’ license, was a limitation established by the DNR and not the Commercial Fishing Law. Consequently, defendants argue that the DNR has exceeded its authority granted by the statute.
Sections lb(2) and lb(l) must be read together. The language in lb(l) that "[n]otwithstanding the provisions of this or any other act, the director of conservation, when in his opinion it is necessary for the better protection, management, harvesting and utilization of the fisheries * * * may limit the number of fishing licenses to be issued * * * and fix and determine the qualifications of such licensees” authorizes the director in issuing licenses under § lb(2) to place reasonable restrictions on licenses not specifically spelled out in the act.
V — Illegal Search and Seizure
The final question before us is whether the [315]*315warrantless search constituted an unreasonable search in violation of the Fourth Amendment, and Article 1, § 11, of the Michigan Constitution. For the Court of Appeals it was enough that MCLA 300.12; MSA 13.1222 "specifically authorizes searches without a warrant if based upon probable cause”. 53 Mich App 192, 199. However, a search without a warrant in order to be reasonable under the Fourth Amendment requires more than probable cause — exigent circumstances must also be present. People v White, 392 Mich 404; 221 NW2d 357 (1974).12
Although MCLA 300.12; MSA 13.1222 does not mention the requirement of exigent circumstances to justify warrantless searches, it is clear that this provision was enacted to cover those situations in which it is not feasible to obtain a warrant. We are "duty bound” under the Michigan Constitution to construe a statute in such a way as to uphold its validity. People v Bricker, 389 Mich 524, 528; 208 NW2d 172 (1973). Consequently, we construe MCLA 300.12; MSA 13.1222 as, inter alia, requiring the presence of exigent circumstances before conservation officers are authorized to conduct warrantless searches under the act.
In this case it does not appear that such exigent circumstances existed. DNR officials had the defendants under surveillance for more than a day prior to boarding the vessel and had established probable cause to believe that defendants were conducting illegal fishing operations well before the actual search took place. In addition, the [316]*316vessel was moored at its berth and there was no indication that the defendants were about to leave to attempt to dispose of the incriminating evidence. The facts suggest that the DNR officials had ample time to obtain a valid search warrant. It also should be noted that on a prior occasion involving similar circumstances DNR officials did obtain a valid warrant.13
Before this Court plaintiff no longer argues that the actions of the conservation officers on the evening of October 3rd constituted a valid search; rather it contends that what took place was not a search but a seizure.
Testimony given by George Robson, one of the DNR officers involved in the October 3rd search and seizure, is enlightening in this regard. Officer Robson stated:
"I advised them [Mrs. Seaman and another couple] that I wanted to search the boat, and the deckhand said, no, we weren’t going to search it, and they asked for a search warrant, and I advised them we didn’t have one, and they indicated that we weren’t going to get on the boat without a search warrant.
”Q. (Continued by Mr. Tyler [Prosecutor]): * * * did you speak with anyone with — regarding gaining access to the boat?
"A. Yes, I asked Mrs. Seaman for permission to inspect the boat, and she said no. She said, if you have got a warrant you can get on the boat, and I advised [317]*317her we didn’t have a warrant but that we didn’t need one, we had probable cause to believe that a violation had been committed and probable cause to believe that the boat had been involved in the violation, and our intentions were to inspect the boat, and she said no. Then, later she got on the boat, and she said, yeah, we can inspect the boat. They weren’t going to unlock it, but we could inspect the boat, and Mr. Seaman also indicated that without a warrant we weren’t going to search the boat, and then he finally consented to our searching the boat, but he wasn’t going to unlock it.
”Q. So, what did you do then, if anything?
"A. Well, we tóok an axe and broke the lock and went aboard the boat. "(Emphasis added.)
There is little question that what took place, was — certainly in the minds of those involved — a search followed by a seizure and not simply a seizure as plaintiffs would have us believe.
With the search unconstitutional, the subsequent seizure of the vessel was illegal. When property has been wrongfully seized following an invalid search, the property should be returned to the owner. People v Marxhausen, 204 Mich 559-574; 171 NW 557; 3 ALR 1505 (1919); see Amos v United States, 255 US 313; 41 S Ct 266; 65 L Ed 654 (1921).
Conclusion
Section lb(2) of the Commercial Fishing Law does not constitute an unconstitutional delegation of legislative authority. Nor does Rule 3 of Order 17 exceed the authority granted the DNR by the Legislature.
The search of defendants’ vessel was unconstitutional and, as a consequence, the subsequent seizure was illegal. Defendants are entitled to return of their fishing vessel.
[318]*318The Court of Appeals is reversed in part and affirmed in part.
This matter is remanded to the Iosco Circuit Court for further proceedings not inconsistent with this opinion.
No costs.
Coleman and Fitzgerald, JJ., concurred with Williams, J.
Lindemer and Ryan, JJ., took no part in the decision of this case.
Appendix
Portion of supplemental brief filed by Ronald R. Tyler, Attorney for Plaintiff-Appellee dated May 23, 1975:
I In response to the Supreme Court’s inquiry as to what notices, if any, were given to Appellants of the changes in the commercial fishing regulations which occurred during the period of 1970 through 1972, the Department of Natural Resources submits the following facts:
1. As early as December 9, 1968 the Department of Natural Resources sent notices to all commercial fishermen advising them of the recent enactment of Act 335, PA 1968, which amended Section 1 of Act 84 of the Public Acts of 1929; MSA 13.1491(2) through 13.1491(5). In that notice all commercial fishermen were advised of forthcoming regulations of the commercial fishery under the new Act. (Exhibit #1)
2. On December 18, 1968 all licensed commercial fishermen in the Lake Huron area were given notice of a public hearing in compliance with Act 88, PA 1943, and Act 197, PA 1952, [319]*319(presently superseded by the Administrative Procedures Act, Act 306, 1969) regarding the inclusion of Lake Huron under the permit system of gill nets. On January 6, 1969 a public hearing on the matter set forth in the notice was conducted in the City of Alpena.
3. On June 23, 1969 the Department of Natural Resources gave notice to all commercial fishermen of a public hearing to be conducted at various places in the state regarding proposed administrative rules governing licensing eligibility of commercial fishermen. The public hearings were conducted on July 15, 1969.
4. On October 13, 1970 in compliance with the Administrative Procedures Act, Act 306, PA 1969, notice of hearing of proposed commercial fishing regulations under the zone management plan for the year 1971 was sent to all persons and organizations likely to be affected by the proposed rules, including the director of the Michigan Fish Producers Association. In addition the notice was sent to interested attorneys and was published by newspaper. On October 26 & 27 of 1970, public hearings were conducted in the cities of Saginaw, Alpena, Marquette, Grand Haven and Manistique. Appellants were present at the hearings in Saginaw. Minutes of the hearings were recorded and filed. Subsequently, the proposed rules were approved and promulgated pursuant to Section 45 and 46 of Act 306 of 1969 and published in the Michigan Administrative Code. The rules as promulgated were controlling as to the privileges granted appellants in their 1971 Commercial Fishing License.
5. On September 10, 1971 notice of public hear[320]*320ing on proposed changes to the 1971 regulations on commercial fishing for the year 1971 [sic] was published and sent to all persons and organizations affected thereby in accordance with the Administrative Procedures Act. Public hearings on the proposed changes were conducted in the City of Manistique on September 21, 1971, Traverse City on September 22, 1971, and Bay City on September 23, 1971. Appellants were in attendance of the public hearing in Bay City. Minutes of the hearings were recorded and filed. Subsequently, the proposed rule changes were approved and promulgated pursuant to Section 45 and 46 of Act 306, PA 1969 and published in the Michigan Administrative Code effective March 18, 1972; being Order No. 17 (revised), amending rules R299.883, R299.886, R299.889 and R299.891. (Supplement No. 65 to the Code) The changes so promulgated were controlling as to the privileges granted appellants in their Í972 license.
II In response to the Supreme Court’s inquiry as to whether the Department of Natural Resources provides administrative hearings for a licensee who contests the limitations of his license, it is submitted that the Department has followed and is continuing to follow the governing provisions of the Administrative Procedures Act, PA 306, 1969; MCLA 24.201 et seq.; MSA 3.560(101) et seq., regarding contested cases.
As applied to Appellants’ case, McGahan and Seaman, through counsel, protested the restrictions and limitations of their 1972 commercial fishing license and requested an administrative hearing for the modification of license privileges [321]*321under the provisions of Act 306. Accordingly, Mc-Gahan and Seaman were granted a formal administrative hearing which concluded September 12, 1972 before a hearing examiner. The Department was represented by Curtiss G. Beck, Assistant Attorney General and Appellants by Nino E. Green, Esq., of Escanaba, ML
Pending the Department’s final decision as required by Section 85 of said Act, the conservation officers seized Appellant’s fishing vessel, the "Jerry W,” for violations alleged to have occurred October 2 & 3, 1972. (The events of which form the basis for the present appeal.)
On October 26, 1972 the Department forwarded the hearing examiners report and recommendation to Appellants and informed them of the availability of a further hearing before the Director of Natural Resources in accordance with Section 81 of the Act.
On November 30, 1972 the Director of Natural Resources in accordance with Section 85 of the Act, gave his final decision based upon the hearing examiner’s recommendations and the record and denied appellant’s petition for expansion and modification of their commercial fishing privileges.