c9f6cac2_atutes_By_State___Landlord_com__Highlights
[State] District of Columbia [Citation] DC Stats. Secs. 8-1808 and 1812 [Local Gov’t] Click here [Highlights] 
An owner’s liability is not strict, but based on negligence in the care, training, and management and control of the dog; however, lack of knowledge of a dog’s dangerous propensities is not a defense, so the dog does not get one free bite.
Dog Bite Liability Statutes By State | Landlord.com
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