No land in any district shall hereafter be used or occupied, and no building or structure shall hereafter be occupied, used, erected or the use of buildings or land altered, except as set forth in the following Schedule of Use Regulations or as specifically regulated or provided otherwise under other sections hereof, provided that the accessory uses and buildings not enumerated in the schedule but necessarily or customarily incidental to a principal use, including the signs otherwise allowed, shall be deemed to fall into the same category as such principal use.

Where an activity may be classified under more than one use listed in the Schedule of Use Regulations, the more specific classification shall apply, and if equally specific, the more restrictive classification shall govern.