13 CFR § 107.820 - Financings in the form of guarantees.
(a) You may not issue a guaranty if:
(1) You would become subject to State regulation as an insurance, guaranty or surety business;
(2) The amount of the guaranty plus any direct Financings to the Small Business exceed the overline limitations of § 107.740, except that a pledge of the Equity Securities of the issuer or a subordination of your lien or creditor position does not count toward your overline; or
(b) Pledge of Licensee's assets as guaranty. For purposes of this section, a guaranty with recourse only to specific asset(s) you have pledged is equal to the fair market value of such asset(s) or the amount of the debt guaranteed, whichever is less.