The official seal of a notary public commissioned by ONCA shall include the following:
A notary public shall affix his or her official signature and official seal on every document notarized, at the time the notarial act is performed.
If the seal is affixed to a tangible record, it shall be applied in permanent ink and shall be capable of being photocopied.
If the document being notarized is made of a non-porous material, such as Mylar or a similar material to which standard ink will not adhere, an embossed seal shall be used alone or in conjunction with a non-porous, permanent ink that dries through evaporation, which will adhere without smearing.
The seal shall not contain the District of Columbia corporate seal.
D.C. Mun. Regs. tit. 17, r. 17-2404