No trailers shall be or remain parked on any land in the Town of Haddam, off the public highways, unless the owner thereof shall have applied for and obtained a zoning permit therefor from the Zoning Enforcement Officer, with the exception of the following classes of trailers, which are excluded from the operation of this regulation:
A. Trailers occupied as living quarters, which are parked on land in the Town of Haddam on November 21, 1974, so long as such trailers shall remain on the same site.
B. Trailers which are both unoccupied and held for resale or repair, in the course of trade, by a dealer licensed as may be required by law.
C. Trailers which are unoccupied; provided, however, that such trailers shall be subject to the provisions of §
270-118 of these regulations.