Section 529.470 - Domestic contract clauses(a) Insert the clause at 552.229-70, Federal, State, and Local Taxes, in solicitations and contracts estimated to exceed the micro-purchase threshold, but not the simplified acquisition threshold.(b) Insert the clause at 552.229-71, Federal Excise Tax-DC Government, in solicitations and contracts that allow the District of Columbia Government to place orders under the contract. 86 FR 55520 , Oct. 6, 2021