Washington D.C.'s overtime payment law can be found in the following sections of the District of Columbia Code.

32-1003. Hours and overtime.

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(c) No employer shall employ any employee for a workweek that is longer than 40 hours, unless the employee receives compensation for employment in excess of 40 hours at a rate not less than 1 1/2 times the regular rate at which the employee is employed.
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(e) No employer shall be deemed to have violated subsection (c) of this section if the employee works for a retail or service establishment and:

(1) The regular rate of pay of the employee is in excess of 1 1/2 times the minimum hourly rate applicable to the employee under this subchapter; and

More than 1/2 of the employee's compensation for a representative period (not less than one month) represents commissions on goods or services.

32-1004. Wage and overtime requirements.

(a) The minimum wage and overtime provisions of section 32-1003 shall not apply with respect to:

(1) Any employee employed in a bona fide executive, administrative, or professional capacity, or in the capacity of outside salesman (as these terms are defined by the Secretary of Labor under section 201 et seq. of the Fair Labor Standards Act); or

(2) Any employee engaged in the delivery of newspapers to the home of the consumer.

(b) The overtime provisions of section 32-1003(c) shall not apply with respect to:

(1) Any employee employed as a seaman;

(2) Any employee employed by a railroad;

(3) Any salesman, partsman, or mechanic primarily engaged in selling or servicing automobiles, trailers, or trucks, if employed by a nonmanufacturing establishment primarily engaged in the business of selling these vehicles to ultimate purchasers;

(4) Any employee employed primarily to wash automobiles by an employer whose annual dollar volume of sales is derived by more than 50% from washing automobiles, and for the employee's employment in excess of 160 hours in a period of four consecutive workweeks, the employee receives compensation at a rate of one and one half times or more the regular rate at which he is employed;

(5) Any employee employed as an attendant at a parking lot or parking garage; or

(6) Any employee employed by a carrier by air who voluntarily exchanges workdays with another employee for the primary purpose of utilizing air travel benefits available to these employees.