Section 800.5 - Definitions(a)Surety bond means an indemnity agreement in a sum certain payable to the regulatory authority, executed by the permittee as principal and which is supported by the performance guarantee of a corporation licensed to do business as a surety in the State where the operation is located.(b)Collateral bond means an indemnity agreement in a sum certain executed by the permittee as principal which is supported by the deposit with the regulatory authority of one or more of the following:(1) A cash account, which shall be the deposit of cash in one or more federally-insured or equivalently protected accounts, payable only to the regulatory authority upon demand, or the deposit of cash directly with the regulatory authority;(2) Negotiable bonds of the United States, a State, or a municipality, endorsed to the order of, and placed in the possession of, the regulatory authority;(3) Negotiable certificates of deposit, made payable or assigned to the regulatory authority and placed in its possession or held by a federally-insured bank;(4) An irrevocable letter of credit of any bank organized or authorized to transact business in the United States, payable only to the regulatory authority upon presentation;(5) A perfected, first-lien security interest in real property in favor of the regulatory authority; or(6) Other investment-grade rated securities having a rating of AAA, AA, or A or an equivalent rating issued by a nationally recognized securities rating service, endorsed to the order of, and placed in the possession of, the regulatory authority.(c)Self-bond means an indemnity agreement in a sum certain executed by the applicant or by the applicant and any corporate guarantor and made payable to the regulatory authority, with or without separate surety.48 FR 32959, July 19, 1983, as amended at 53 FR 997, Jan. 14, 1988; 81 FR 93381 , Dec. 20, 2016; 82 FR 54972 , Nov. 17, 2017