In this subpart, unless the context otherwise requires,—
claimed amount means an amount of progress payment specified in a payment claim that the payee claims to be due for construction work carried out
payee means the party to a construction contract who is entitled to a progress payment
payer means the party to a construction contract who is liable for that payment
scheduled amount means an amount of progress payment specified in a payment schedule that the payer proposes to pay to the payee in response to a payment claim.