N.Y. Comp. Codes R. & Regs. tit. 15, § 82.7
(a) The Commissioner of Motor Vehicles shall furnish an official indoor repair shop sign. Every registered repair shop, except those which are registered as repair shops solely to perform appraisal work in connection with insurance, shall post this sign indoors in a place where customers are likely to see it.
(b) The repair shop shall post an official outdoor repair shop sign. Such sign shall be posted outside even if the official indoor sign has been posted outside. The size, shape and text of official outdoor repair shop signs must conform to the following specifications: An official outdoor repair shop sign must be three feet wide and two feet high and made of a durable material which will withstand the outdoor elements. The sign may be either a single- or double-faced sign, but must be hung or mounted in such manner that it is visible to the public.
(1) The text and design of the sign shall be as follows:
Such sign must be displayed on the outside of the premises and may be mounted flat against a building, or painted thereon, provided it is visible to the public. Such signs must be in place within 30 days from the date of issuance of the registration.
(c) The repair shop shall post on a sign at least 8½ by 14 inches how its labor charge is computed and may also show its hourly labor charge. This sign shall be posted next to the official indoor repair shop sign. The repair shop shall supply the sign. A mobile unit shall have the labor charge sign firmly affixed to the outside of the mobile unit in such a manner that it is visible to pedestrians. The following are recommended alternative examples: