D.C. Mun. Regs. tit. 24, § 2311
2311.1 Knowledge of the laws of the District pertaining to firearms, and knowledge of the safe and responsible use of firearms, shall be tested through a written examination.2311.2 Under compelling circumstances, an oral test may be administered in place of the written test.2311.3 The type of test and its content shall be at the sole discretion of the Director.2311.4 The written exam shall consist of no less than twenty (20) questions.2311.5 A score of seventy-five percent (75%) or better shall be a passing grade.2311.6 Rifles and shotguns shall be considered the same type of firearm for the purposes of testing.2311.7 If an applicant fails an examination, he or she shall be allowed one (1) retest without charge.2311.8 A fee equal to that submitted with the original application shall be assessed for the second retest and for each subsequent retest.2311.9 Complete a firearms training or safety course or class conducted by a state-certified firearms instructor or a certified military firearms instructor that provides, at a minimum a total of at least one hour of firing training at a firing range and a total of at least 4 hours of classroom instruction2311.10 Submit an affidavit from the certified firearms instructor who conducted or taught the course, providing the name, address, and phone number of the instructor and attesting to the successful completion of the course by the applicant shall constitute evidence of certified successful completion of the requirement imposed by section 2311.9.
SOURCE: Final Rulemaking published at 23 DCR 8942 (May 6, 1977), incorporating text of the Proposed Rulemaking published at 23 DCR 7061, 7069 (March 4, 1977); 35 DCRR §306, November 1980, Special Edition; as amended by Notice of Emergency and Proposed Rulemaking published at 56 DCR 624 (January 16, 2009)[EXPIRED]; as amended by Notice of Final Rulemaking published at 56 DCR 4380, 4381 (June 5, 2009).