N.Y. Comp. Codes R. & Regs. tit. 12, § 361.3
(b) An applicant which has been approved to become a self-insurer shall either:
(4) in lieu of securities, cash or letters of credit and at the discretion of the chair, file with the chair the bond of a surety company authorized to do business in this State, in form and penal sum acceptable to the chair and conditioned on the payment by the self-insurer of all its obligations and the obligations of each and every employer for whose employees the self-insurer provides benefits under article 9 of the Workers' Compensation Law. Each surety bond shall be undertaken and may be enforced in the name of “Chair, Workers' Compensation Board, State of New York”;
(c) To be acceptable, a letter of credit filed pursuant to paragraph (a)(3) of this section must comply with all requirements set forth in Regulation 133 of the New York State Insurance Department, codified as 11 NYCRR Part 79, except that:
(3) a bank, to be a qualified bank, may in lieu of a determination by the Securities Evaluation Office of the National Association of Insurance Commissioners for purposes of 11 NYCRR 79.1(e)(3), have either a long-term debt rating equal to Baa/BBB or better by Moody's or Standard & Poor's or the equivalent thereto from any other securities rating service, and/or a short-term debt rating of P2/A2 from Moody's or Standard & Poor's or the equivalent thereto from any other securities rating service:
(d) For employers self-insuring for both disability benefits and paid family leave benefits, the self-insurer shall deposit securities and/or cash with the chair, and/or file an acceptable surety bond and/or irrevocable letters of credit, in an aggregate amount and/or penal sum calculated as follows and subject to the chair’s discretion:
(e) For employers self-insuring for disability benefits only, the self-insurer shall deposit securities and/or cash with the chair, and/or file an acceptable surety bond and/or irrevocable letters of credit, in an aggregate amount and/or penal sum calculated as follows and subject to the chair’s discretion:
(2) at the chair’s discretion, as determined under Table 1 in section 376.1(c) of this Title.
(f) Consolidation of security deposits.
(2) A not-for-profit corporation which has qualified as, or has applied to become, a self-insurer pursuant to the provisions of subdivision (3) of section 211 of the Workers' Compensation Law may apply to the chair for permission to establish a consolidated deposit with one or more not-for-profit corporations of which it is the owner, directly or indirectly, of at least a majority interest. For purposes of this section, a determination of majority interest shall be based on: Such application shall be accompanied by an agreement, in the form prescribed by the chair, duly approved by the board of directors of each not-for-profit corporation that the corporate parties and the aggregate amount of securities and/or cash, the aggregate amount of the penal sums of the surety bonds and/or the aggregate amount of the letters of credit deposited or to be deposited with the chair by them, individually and collectively, at all times shall be liable and shall be available, at the discretion of the chair, for the payment of administrative expenses, assessment, and/or other charges or obligations for which the corporation and/or each and every one of the entities in which the not-for-profit corporation has a majority ownership interest shall be liable under the Workers' Compensation Law and under the rules and regulations of the Workers' Compensation Board and/or of its chair.