Revises a provision of the municipal Barrett Law to: (1) require a municipal works board to establish a policy to permit an owner of real property in the municipality that has filed a waiver to pay the property owner's assessments in deferred installments to prepay the property owner's assessment; and (2) specify that the policy must allow such a property owner to pay the assessment in full at any time, including within the year in which the waiver is filed to pay assessments in deferred installments, while retaining the provision in current law for payment in full at any time after the expiration of the first year after the filing of the waiver.