(a) Housekeeping accommodations are those units of 501 or more square feet that contain regular cooking facilities. Non-housekeeping accommodations are those that do not contain regular cooking facilities, and all units of 500 or less square feet.

(b) Square feet encompasses the entire building area except porches, garages, basements, and attics unless they have been converted to usable living area.

(c) Square footage is calculated by multiplying the interior living area length times the width.

(d) Areas officially set aside as state offices will not be included in the calculation of square feet to compute rental charges.

(e) Housing is in Location Class 1 when it is within 25 miles and not more than 40 minutes travel time, one way, of a community with 2,500 or more year-round population. All other housing is in Location Class 2.