D.C. Mun. Regs. tit. 14, r. 14-306
In each lease or rental of a habitation, the owner shall provide written receipts for all monies paid to him or her by the tenant as rent, security, or otherwise, unless the payment is made by personal check.
Each receipt issued under this section shall state the following:
Each receipt shall also state any amounts still due which are attributable to late charges, court costs, or any other such charge in excess of rent.
If payment is made by personal check, and there is a balance still due which is attributable to late charges, court costs, or any other such charge in excess of rent, the owner shall provide a receipt stating the nature of the charges and the amount due.
The provisions of this section shall not be subject to any notice requirement of this subtitle.
D.C. Mun. Regs. tit. 14, r. 14-306