W. Va. Code § 30-27-17a – Mobile shops.

(a) Every mobile shop in this state offering services set forth in this article shall be operated under the supervision and management of a professional licensee or certificate holder licensed under this article.
(b) Prior to opening a mobile shop, any person, firm, or corporation owning and/or operating the mobile shop shall meet the following requirements to acquire a mobile shop license to do business:
1. (1) Provide to the board a physical description and photographs of the exterior of the mobile shop and, if applicable, its vehicle registration number to facilitate ready identification of the mobile shop;
2. (2) Meet all board requirements and qualifications for a place of business, not incompatible with a mobile facility, as are required by this article;
3. (3) Notify the board, in writing, at least 20 days before the proposed opening date, so there can be an inspection of the mobile shop: Provided, That if an inspection is not made within 10 days of the opening of the mobile shop, or a mobile shop license to open has not been granted or refused, then the mobile shop may open provisionally subject to a later inspection and to all other provisions and rules provided in this article; and
4. (4) Pay all applicable fees.
(c) Every mobile shop shall be equipped with an electronic device, approved by the board, capable of transmitting its location, as well as an identifying label or call sign, to the board at all times. This device shall be in operation at all times that the mobile shop is open and at additional times specified by the board.
(d) If the mobile shop visits identified locations on a regular schedule, the managing licensee shall provide a copy of the schedule to the board and shall notify the board in writing of any changes to the regular schedule within five days of changing the schedule.
(e) Each mobile unit shall, at a minimum, be equipped with each of the following functioning systems:
1. (1) A self-contained, potable water supply of not less than 100 gallons, and waste water collection tanks shall be of adequate capacity;
2. (2) Continuous, on-demand hot water tanks which shall have not less than a six-gallon capacity; and
3. (3) A cooling and heating system sufficient to maintain a comfortable room temperature in the mobile shop during all hours of operation.
(f) All mobile shop licenses must be renewed annually on or before July 1 and pay a renewal fee.
(g) The mobile shop license shall be permanently displayed in the mobile shop, and a suitable sign shall be displayed at the entrance of the mobile shop which shall plainly indicate the business conducted therein.