The time and date deadline will be noted on the cover page of the respective bid or proposal. The Purchasing time stamp shall be the official time of receipt.The City of Maricopa Development Services, offers a one-stop shop for information and services related to the construction and development process. Quantities of fill construction will be paid for at the contract unit price per cubic yard of fill as stipulated in the proposal. Your proposal is available for you to edit or change any time up to the RFP submission deadline. To make your campus more welcoming, costeffective and sustainable, Maricopa County Community College. Provides guidance for land use development, long range planning, housing, and environmental policies.