17 CFR § 12.16
Response to complaint
April 15, 2021
Within 25 days after the complaint has been served by the Office of Proceedings on the registrant, or within such additional time (not to exceed 10 days absent extraordinary circumstances) as the Director of the Office of Proceedings, or his/her delegee may grant, for good cause shown, each registrant shall either—
(a) Satisfy the complaint in accordance with §12.17 of these rules; or
(b) Answer the complaint in the manner prescribed by §12.18 of these rules.
[59 FR 9636, Mar. 1, 1994]