D.C. Mun. Regs. tit. 17, § 2412
2412.1 The Secretary of the District of Columbia shall issue certifications (authentications) of seals and signatures of notaries appointed in the District of Columbia pursuant to Section 588 of An Act to establish a code of law for the District of Columbia, approved March 3, 1901 (31 Stat. 1279; D.C. Official Code § 1-1201), and this chapter.
2412.2 The Secretary of the District of Columbia shall issue certifications of the signatures of the District of Columbia governmental officials who are required to sign documents of public records. The certifications shall be as follows:
(a) A Certificate: For documents that will be used within the United States, generally for interstate commerce.
(b) Department Head Certificate: For documents that require the signature of an agency head (or his or her designee) and the official seal of the agency.
(c) Apostille: For documents destined for countries that are parties to the Hague Convention.
(d) Foreign Certificate: For documents destined for countries that are not parties to the Hague Convention.
2412.3 A fee of fifteen dollars ($15.00) per certificate shall be charged for the issuance of District certifications under this section. The certifications will be issued through the Office of Notary Commissions and Authentications.
2412.4 For procedures on obtaining notarizations in other state or foreign jurisdictions that will be recognized in the District of Columbia, please see D.C. Official Code §§ 42-141 et seq.
SOURCE: §§ 1.7 and 1.8(a) of Regulation No. 73-13, as amended by § 302 of the Notaries Public Fees Increase Act of 1983, effective June 22, 1983 (D.C. Law 5-14; 30 DCR 2632 (June 3, 1983)); as amended by Final Rulemaking published at 43 DCR 3365 (June 30, 1995) (changed fees to $10); as amended by Final Rulemaking published at 57 DCR 5052 (June 11, 2010) (changed fees to $15); as amended by the Notaries Public Authentications and License Fee Amendment Act of 2010, effective September 24, 2010 (D.C. Law 18-223; 57 DCR 6242, 6259 (July 23, 2010)); as amended by Final Rulemaking published at 63 DCR 9099 (July 1, 2016).