Code of Federal Regulations Title 36. Parks, Forests, and Public Property § 36.910.33 Off-street parking

(1) Hotel:  One parking space for each four sleeping rooms or suites;

(2) Places of public assemblage other than hotels:  (i.e., arena, armory, theater, auditorium, community center, convention center, concert hall, etc.) one parking space for each ten seats of occupancy capacity for the first 10,000 seats plus one for each 20 seats above 10,000:  Provided, that where seats are not fixed, each seven square feet of gross floor area usable for seating shall be considered one seat;

(3) Retail, trade, and service establishments:  one parking space for each 750 square feet of gross floor area;

(4) Residential:  One parking space for each 1.2 units;

(5) Offices:  One parking space for each 1,800 square feet of gross floor area.