14 CFR § 147.13

Each certificated aviation maintenance technician school must provide and maintain the facilities, equipment, and materials that are appropriate to the rating or ratings held by the school and the number of students taught.

For certificated aviation maintenance technician schools that provide training at more than one location in accordance with § 147.15, the facilities, equipment, and materials used at each location must be appropriate to the curriculum or portion of the curriculum, and the number of students being taught, at that location.