27 CFR § 70.253 - Periods of limitation on suits by persons other than taxpayers.
(a) General rule. No suit or proceeding, except as otherwise provided in 26 U.S.C. 6532(c)(2) and paragraph (b) of this section, under 26 U.S.C. 7426 and § 70.207 of this part relating to civil actions by persons other than taxpayers, shall be begun after the expiration of 9 months from the date of levy or agreement under 26 U.S.C. 6325(b)(3) giving rise to such action.
(b) Period when claim is filed. The 9-month period described in 26 U.S.C. 6532(c)(1) and paragraph (a) of this section shall be extended to the shorter of
(1) 12 months from the date of filing by a third party of a written request under § 70.167(b)(2) of this part for the return of property wrongfully levied upon, or
(2) 6 months from the date of mailing by registered or certified mail by the appropriate TTB officer to the party claimant of a notice of disallowance of the part of the request to which the action relates. A request which, under § 70.167(b)(3) of this part, is not considered adequate does not extend the 9-month period described in paragraph (a) of this section.