The Materials Recovery facility at Lovelace transfer station needs existing non-functional roof exhaust fans replaced. The new fans will be similar to the existing. Proper ventilation is needed inside the MRF to control dust; therefore the need to replace all nonfunctional fans. Only one contractor shall be responsible for providing a complete and functionalexhaust fans as specified in this document: including the procurement of products, installation, wiring and testing. Contractor shall have a valid C-10 California State contractor's license. Contractor shall provide a copy of license with the bid proposal.