Section 8-1904 - Dangerous dog and potentially dangerous dog registration requirements(a) The Mayor shall issue a certificate of registration to the owner of a potentially dangerous dog if the owner establishes to the satisfaction of the Mayor that: (1) The owner of the potentially dangerous dog is 18 years of age or older;(2) A valid license has been issued for the potentially dangerous dog pursuant to District law;(3) The potentially dangerous dog has current vaccinations;(4) The owner has a proper enclosure, as determined by the Mayor, to confine the potentially dangerous dog;(5) The owner has paid an annual fee in an amount to be determined by the Mayor, in addition to regular dog licensing fees, to register the potentially dangerous dog;(6) The potentially dangerous dog has been spayed or neutered;(7) The potentially dangerous dog has been implanted with a microchip containing owner identification information; and(8) The owner has written permission of the property owner, if the dog owner is not the property owner, and from a homeowner's association, if appropriate, to house the dog on the premises where the dog will be kept.(b) The Mayor shall issue a certificate of registration to the owner of a dangerous dog if the owner, in addition to satisfying the requirements for registration of a potentially dangerous dog pursuant to subsection (a) of this section, establishes to the satisfaction of the Mayor that the owner of the dangerous dog has posted on the premises a clearly visible, printed warning sign, in type that is readable from not less than 50 feet, that there is a dangerous dog on the property, and that includes a conspicuous warning symbol that informs children of the presence of a dangerous dog.Oct. 18, 1988, D.C. Law 7-176, § 5, 35 DCR 4787; Dec. 5, 2008, D.C. Law 17-281, § 105(d), 55 DCR 9186.