Owners and operators subject to this subchapter may use any of the following financial assurance mechanisms to demonstrate financial assurance for restoration:(1) a trust agreement as specified in §37.9185 of this title (relating to Trust Fund Requirements);(2) a surety bond guaranteeing payment as specified in §37.9195 of this title (relating to Surety Bond Guaranteeing Payment Requirements);(3) an irrevocable standby letter of credit as specified in §37.9205 of this title (relating to Irrevocable Standby Letter of Credit Requirements);(4) insurance as specified in §37.9215 of this title (relating to Insurance Requirements);(5) a financial test as specified in §37.9225 of this title (relating to Financial Test Requirements); or(6) a corporate guarantee as specified in §37.9235 of this title (relating to Corporate Guarantee Requirements).