Gardner, Judge:
This action was commenced by the Department of Insurance by a petition the object of which was to require the Chief Insurance Commissioner to rescind its previous order designating Walter B. Mungo (Mungo) as a producer for the South Carolina Reinsurance Facility; he was so appointed pursuant to Section 38-37-150,1 Code of Laws of South Carolina (1976). The thrust of the petition is that Mungo was designated a producer on February 7,1977,2 while his agency was located in the Irmo-St. Andrews area of Lexington County, where there was a market need for the designation of a producer for the Reinsurance Facility, and that Mungo moved his agency in November 1983 to North Main Street in the City of Columbia, where there is no market need for a designated agent. Mungo answered the petition and alleged, inter alia, that Section 38-37-150 provides two independent reasons for appointment as a producer, viz., (1) market need or (2) the loss of agency contracts because of the South Carolina Automobile Reparation Reform Act.3 Mungo alleged and urges that either reason may be the basis of appointment and since he was appointed perforce of reason number two, his moving his agency to Columbia cannot be the basis for the revocation of his producer designation. Mungo further alleged that the Commission had granted designations as producers to other agents without requiring a demonstration of market heed or the loss of contracts with insurance companies and specifically alleged several instances of this. Mungo alleges in substance that, because of this last mentioned allegation, to revoke his designation would be an arbitrary decision.
The then Chief Insurance Commissioner Rogers T. Smith appointed John G. Richards V, as the presiding officer for [563]*563the hearing. We note that Richards is now the Chief Insurance Commissioner for the Insurance Department of South Carolina. Commissioner Richards, after a full hearing, recommended that Mungo’s designation as a producer for the Reinsurance Facility should not be revoked. The then Chief Commissioner Smith overruled the recommendation of Commissioner Richards and revoked Mungo’s designation. Mungo’s appeal to the circuit court resulted in the appealed order affirming Commissioner Smith’s revocation of Mun-go’s designation. We reverse.
Because we are impressed with certain legál conclusions reached by the hearing officer and present Chief Commissioner of the South Carolina Insurance Commission, we report the pertinent provisions of his order.
Having reviewed the record in its entirety, the Presiding Officer concludes that the Respondent, Walter B. Mungo, has not violated any specific provision of Title 38 of the 1976 Code of Laws of South Carolina, as amended, or any specific regulations promulgated by the Department of Insurance that would authorize the Chief Insurance Commissioner to withdraw the Respondent’s designation as a Producer for the South Carolina Reinsurance Facility.
In not finding any specific authority for the Chief Insurance Commissioner to withdraw the Respondent’s designation as a Producer for the South Carolina Reinsurance Facility, other than for specific violations of the Insurance Code which might be committed by any other licensed insurance agent in the State and which might require the permanent revocation of that agent’s license to act as an insurance agent in South Carolina, the Presiding Officer must then look to any authority which might arise by “reasonably necessary” implication.
The only provision within Title 38 of the 1976 Code of Laws, as amended, which mentions “Designated Producers” is Section 38-37-150, as amended by Act No. 412 of 1980. That provision speaks only to the “designation” of such Producers and is silent as to the withdrawal of such designation, for any cause. It might be implied that because the Chief Insurance Commissioner has the expressed authority to designate, he then has the implied authority to withdraw such designation. In that case, it [564]*564would follow that if a Designated Agent received an appointment, or entered into a contract to write automobile business for another insurer, other than one appointed by the Chief Insurance Commissioner pursuant to that same Section, then the Producer’s (or Agent’s) designation could, and should, be withdrawn. However, the Presiding Officer cannot stretch this implied authority to withdraw designation to the circumstances surrounding the case at hand. The Respondent was designated in 1977 because he met the requirements contained in Section 38-37-150, as amended, and has merely changed the location of his office, a matter of a few miles, in the same metropolitan area. This does not appear to be a circumstance whereby it would be “reasonably necessary” for the Commissioner to exercise the implied authority to withdraw designation, and as such, leaves a “reasonable doubt” as to whether the power should be “exercised” at all. In fact, when such a “reasonable doubt” exists, we are guided by the following language as contained in Calhoun Life Insurance Company, et al., v. Gambrell, 245 S. C. 406, 140 S. E. (2d) 774, 776 (1965):
It is elementary law that “administrative agencies are creatures of statute and their power is dependent upon statute, so that they must find within the statute warrant for the exercise of any authority which they claim.” 1 Am. Jur. (2d), Administrative Law Section 70, Page 88G.
As the South Carolina Supreme Court said in Piedmont & Northern Ry. Co. v. Scott, 202 S. C. 207, 24 S. E. (2d) 353, 360:
Such (administrative) bodies, being unknown to the common law, and deriving their authority, wholly from constitutional and statutory provisions, will be held to possess only such powers as are conferred, expressly or by reasonably necessary implication, or such as are merely incidental to the powers expressly granted. See 51 C. J. 36, 37, where among other things it is said: “Any reasonable doubt of the existence in the commission of any particular power should ordinarily be resolved against its exercise of the power.” And purely administrative functions are readily distinguishable from the [565]*565making of regulations affecting substantial rights, which being in derogation of the common law must be directly derived from constitutional or statutory provisions.
That this principle is applicable to the Insurance Department is indicated by the case of Independence Ins. Co. v. Independent Life & Acc. Ins. Co., 218 S. C. 22, 61 S. E. (2d) 399, 402, where the Court said, “Authority need not be cited for the observation that the power of the (insurance) commissioner is derived solely from the statutes. To them alone we look for his authority and jurisdiction.”
RECOMMENDATION AND PROPOSAL FOR DECISION
The Presiding Officer finds that the Respondent, Walter B. Mungo, did not in the instance at hand violate any provision of Title 38 of the 1976 Code of Laws of South Carolina, or any regulation promulgated by the Department of Insurance that would authorize the Chief Insurance Commissioner to withdraw the Respondent’s designation as a Producer for the South Carolina Reinsurance Facility. The Presiding Officer, after reviewing the record in its entirety, can find no specific statutory prohibition expressed or implied or specific regulatory prohibition or specific case law prohibition against a Designated Producer for the Reinsurance Facility, moving his or her place of business from one location to another. There does appear to be a striking absence of any standards of operation for Designated Producers, other than a letter to all Designated Producers dated August 8, 1975, from former Chief Insurance Commissioner John W. Lindsay, which included a “Notice to Designated Producers.” (SEE: SCID Exhibit Number 3). Contained within that “Notice to Designated Producers,” there is no specific prohibition against changing locations. There is language, Item eight, Page three of that Notice, which states:
Selling, negotiating sale, of an agency without informing the purchaser or prospective purchaser, that automobile insurance of an agent is marketed through the [566]*566designated producer system. (The designated producer status is nontransferable, and is withdrawn when the individual so designated ceases to participate in the insurance operation.)
However, the language quoted above, specifically the word “nontransferable,” obviously addresses the Designated Producer’s status itself, not the relocation of the Designated Producer’s office, especially when read, in conjunction with Section 38-37-150 of the 1976 Code of Laws of South Carolina, as amended by Act No. 412 of 1980.
The Presiding Officer takes official notice of a matter of common knowledge that on August 18,1983, at a meeting of the Board of Governors of the South Carolina Reinsurance Facility, that body officially approved a Designated Agent (Producer) Contract which contained therein, for the first time, a specific prohibition against a Designated Agent (Producer) changing the location of his or her agency from one location to another without the prior approval of the Chief Insurance Commissioner. It is admitted that the Respondent operated as a Designated Producer at 6356 St. Andrews Road, Lexington County, South Carolina, “until November, 1983, at which time Respondent moved his agency to a building located at 2800 North Main Street, in the City of Columbia, Richland County, South Carolina.” There is no evidence or testimony to prove that the Respondent entered into the Designated Agent Contract, approved by the Board of Governors of the South Carolina Reinsurance Facility, prior to the date of that move. Consequently, the Presiding Officer is unable to determine whether the Respondent is in violation of the prohibition against changing his location, as contained in paragraph eleven (a) of that Contract, entitled “Limited Agency Agreement,” or not.
Therefore, the Presiding Officer recommends that the Chief Insurance Commissioner should issue an Order denying the withdrawal of the Respondent’s designation as a Producer for the South Carolina Reinsurance Facility as prayed for in the Petition dated November 23, 1983, and further, recommends that this administrative action be dismissed.
[567]*567Commissioner Smith’s order overruling Commissioner Richard’s report summarized Commissioner Smith’s view thusly:
It is the Department’s position that respondent [Mungo] was designated to fill what was perceived at the time to be a market need in the Irmo-St. Andrews area of Lexington County, and that respondent’s unauthorized removal of his agency constitutes a breach of the purposes and conditions for which his designation was originally intended. I agree.
At the core of this decision, as will be later discussed, is whether there is evidence of record to support this finding.
The divergent views of the present Insurance Commissioner and the then Commissioner Smith must be resolved by an interpretation of Section 38-37-150, which provides:
Section 38-37-150. Survey by Commissioner to ascertain state of marketing outlets.
Not more than six months after July 9, 1974, or at such earlier time as he deems it necessary by reason of complaints regarding want of access to automobile insurance in particular areas or want of outlets for procedures, the Commissioner shall survey the various areas of the State to ascertain if sufficient marketing outlets exist in all areas or are available to all producers; and upon his finding that insufficient marketing outlets exist in particular areas or that certain producers have been deprived of a market for risks previously serviced by them, the Commissioner may, after consultation with the Facility, designate one or more insurers to service such areas through agents appointed by them or may designate such producers as the agents of any such insurer or insurers. Such arrangements shall include provision for one hundred percent quota share reinsurance through the Facility of any automobile insurance policy marketed through such arrangements, at the option of the insurer, and any such reinsurance shall not be subject to the statutory provisions of rules and regulations regarding excessive utilization of the Facility. The designation of a producer by the Commissioner shall be transferable to a qualified spouse, [568]*568child, parent, brother or sister of such producer upon the designated producer’s death, retirement or incapacity. [Emphasis ours.]
We agree with Commissioner Richards. The most elementary rule of statutory interpretation is to ascertain and effectuate the legislative intent whenever possible. McDonald v. State Farm Mut. Auto. Ins. Co., 287 S. C. 40, 336 S. E. (2d) 492 (Ct. App. 1985). It is apparent that the legislature had both a public and a private purpose in mind when it passed Section 38-37-150. First, the legislature sought to accomplish the public goal of full availability of automobile insurance on a non-discriminatory basis. Second, the legislature wished to prevent creating economic hardship for insurance agents caused by the termination of agency contracts with insurance companies because of the Insurance Reform Act. The wording of Section 38-37-150 creates two distinct and/or alternate purposes.
In its elementary sense, the word “or” as used in a statute is a disjunctive indicating that the various members of the sentence are to be taken separately. 73 Am. Jur. (2d), Statutes Section 241 (1974). Where the statute contains two clauses which prescribe its applicability and the clauses are connected by the disjunctive “or,” application of the statute is not limited to cases falling within both clauses, but applies to cases falling within either. Davis v. N. C. Granite Corporation, 259 N. C. 672, 131 S. E. (2d) 335 (1963). With respect to Section 38-37-150, the legislature established two separate grounds for the appointment of a designated agent. The word “or” used in the statute marks an alternative and ordinarily means one or the other of two. Brewer v. Brewer, 242 S. C. 9, 129 S. E. (2d) 736 (1963).
While on occasions our court has interpreted the word “or” as meaning “and,” such an interpretation is strained when applied to Section 38-37-150. We hold therefore that the Commissioner erred in his construction of Section 38-37-150-
We therefore hold that Commissioner Smith’s order is erroneous insofar as it holds that market need is or was the only criteria for consideration in the designation of producers for the Reinsurance Facility.
[569]*569Having so held, we address the issue of whether the appealed order is also erroneous under the Administrative Procedures Act because there is no reliable, probative and substantial evidence of record to support Commissioner Smith’s factual conclusion as prescribed by Section 1-23-380, Code of Laws of South Carolina (1976) as amended.
We premise this discussion by reminding the reader that we have held that Section 38-37-150 established two separate grounds for the appointment of a designated agent. Unless there is reliable, probative and substantial evidence to support Commissioner Smith’s finding that Mungo was appointed purely on the bases of market néed, this case must be reversed. This is true because Mungo’s testimony is that he lost his agency contracts with insurance companies because of the 1974 Insurance Reform Act.
The only evidence offered by the Commissioner to prove that Mungo’s appointment as a producer was based only upon market need is a letter dated August 8, 1975, sent to designated producers by Commissioner Lindsay to remind them of their obligations. Attached to this letter was a list of rules governing the handling of automobile insurance by designated producers. This letter, for two reasons, we hold, is not evidence that Mungo was designated solely because of market need.
First, the letter was premised upon its first paragraph which is:
This is a personal letter to remind you of your obligations as a designated producer under the provisions of the automobile insurance law of 1974..
The very fact that this letter was mailed to Mungo establishes that prior to the letter on August 8,1975, Mungo had been appointed as a designated producer; this despite the fact that he evidently was required to reapply in 1977.
The letter also contains this:
The designated producer was created in order to assure the availability of automobile insurance to all citizens of our State and the section authorizing such designation was not enacted for the purpose. of keeping insurance agents in the insurance business.
[570]*570This last quoted provision we hold to be a misinterpretation by Commissioner Lindsay of Section 38-37-150; and furthermore, it is an impermissible assumption of legislative power, which by our State Constitution rests in the. General Assembly.
The list of rules attached to Commissioner Lindsay’s letter provided:
It should be stated that the insurance department has taken the position that no new designations of agents shall be made after August 1, 1975, unless it can be demonstrated by the applicant, as provided in Act No. 1177 of 1974 (Now Section 38-37-150), a “want of access to automobile insurance in particular areas” exists. [Emphasis ours.]
We first hold that the insurance department had no authority to limit the application of Section 38-37-150 to the designation of agents for “want of access to automobile insurance in particular areas” because Section 38-37-150 clearly sets an alternate reason for the appointment of a producer for the Reinsurance Facility, i.e., the loss of agency contracts with insurance companies as a result of the Insurance Reform Act. As long as agents lose their agency contracts because of the Insurance Reform Act, this last mentioned reason for the appointment of producers for the Reinsurance Facility remains viable and we so hold.
Second, we observe that because the letter of August 8, 1975, was written to Mungo as a producer for the Reinsurance Facility, it is clear that Mungo was not in 1977 a new producer.
We further note that Commissioner Lindsay’s letter of October 8, 1975, and the attached rules did not prohibit a designated producer’s moving his location.
Commissioner Smith relies on the case of Cooper v. Smith, 82-CP-40-5325 (Order dated June 23,1983), a Court of Common Pleas case which was not appealed, to support its finding of no market need in the North Main Street area of Columbia. We hold this ruling is redundant because at the time there was no law or regulation prohibiting a producer from moving his agency; this is especially true as to those producers who were appointed because of losing their [571]*571agency contracts with insurance companies because of the Insurance Reform Act.
We hold that the appealed order is erroneous because of the additional reason that there is no reliable, probative or substantial evidence to support Commissioner Smith’s finding that Mungo was appointed perforce of market need and not for the second reasons, i.e., that he had lost his agency contract with insurance companies because of the Insurance Reform Act.
On the other hand, we differ with Commissioner Richards’s holding that a Chief Insurance Commissioner does not have implied authority under Section 38-37-150 to revoke the designation of a producer for the Reinsurance Facility provided the revocation is with the advice and consent of the Reinsurance Facility Board.
Because of shifting demographic changes which are continually occurring in urban areas, both the availability of insurance agency contracts and the market need for the Reinsurance Facility constantly change. Coincident with the right to employ is the right to discharge if there is no further need for the employment. We hold this to be an implicit right of the Insurance Commissioner with respect to the revocation of the designation of producers for the Reinsurance Facility.
We hold, however, that this implied authority of the Insurance Commissioner to revoke a producer’s designation cannot be arbitrary. His revocations must be uniform throughout the state and not aimed at one agent, as appears to be the case before us with reference to Mungo. Commissioner Smith’s order provided that unless Mungo moved his business back to the St. Andrews area, his designation would be revoked. This does not make sense; the St. Andrews area now has numerous insurance agents and there is, further, a questionable market need there for producers for the Reinsurance Facility.
We also hold that the designation of other producers for the reasons not provided in Section 38-37-150 is admissible to show arbitrary designation of producers for the Reinsurance Facility. In order to revoke a designation as a producer, the Chief Insurance Commissioner must establish that the revocation is consistent with both non[572]*572discriminatory appointments and nondiscriminatory revocations of designations as producers for the Reinsurance Facility. Commissioner Richards excluded testimony of arbitrary appointments of producers; for the reasons stated, we hold this to have been error. And we so hold.
For the reasons stated, the appealed order is reversed and the case is remanded for reconsideration by the Department of Insurance in accordance with this decision.
Reversed and remanded.
Shaw, J., concurs.
Cureton, J., concurs separately.