The contractor is obliged to perform the contract as unilaterally changed by the contracting officer. A change is within the scope of the contract if it can be regarded as with the contemplation of the parties at the time the contract was entered into. The government cannot use a change order to change the general nature of the contract. The contractor is entitled to an equitable adjustment in price and delivery schedule if changes are ordered. The obligation to make prompt payments for products delivered or services rendered is, generally speaking, the primary obligation of the government on a procurement contract.
Payment is, naturally, of utmost importance to the small and women-owned company.
Your contract will specify the government office responsible for payment and will contain invoicing instructions. The more accurate your invoices the more quickly you will be paid, so it is important to understand the payment process thoroughly. Prompt payment on all contracts serves the best interest of both the contractor and the government. Under certain circumstances if prompt payment is not accomplished by the government, you can submit a request for interest payments. Under fixed-price contracts, the method of payment can vary with the dollar value of the contract.