a. Principal and interest payments on bonds issued in accordance with subsection c. of N.J.S.40A:26A-9 and operating and maintenance costs for sewerage facilities, shall not be included in computing the gross or net indebtedness of the local unit issuing the bonds if the cash receipts from fees, rents and other charges in a fiscal year are sufficient to meet operating and maintenance expenses. In such cases, sewerage facilities shall be deemed a self-liquidating purpose and interest and debt redemption charges, and maintenance and operating costs payable or accruing in that fiscal year shall be treated in the manner prescribed in N.J.S.40A:2-45 through N.J.S.40A:2-47.
b. (1) Annual installment payments to a local unit made pursuant to N.J.S.40A:26A-15 shall not be included in computing the gross or net indebtedness of the other participating government or governments, except that a self-liquidating purpose facility shall be subject to the provisions of N.J.S.40A:2-48; nor
(2) shall the principal and interest on bonds issued by a local unit to finance, pursuant to an agreement made in accordance with N.J.S.40A:26A-15, the share of the cost of the construction or acquisition, or of maintenance or operation of another government, be included in any computation of gross or net indebtedness of the local unit.