Specifications include, but are not limited to: Firms that are able to provide Bay Door Maintenance Services. A. Depending on when the contract is awarded, quarterly maintenance is to be done every ninety (90) days with the first quarterly maintenance scheduled within thirty (30) days of contract execution. B. Contractor will be required to call on-site contact person or designee and make an appointment to perform the maintenance one (1) week prior to service. C. Contractor shall sign in and sign out with the CHP Area on-site contact or designee upon each service; and sign in and sign out on the Area vendor sign-in log to provide verification that service has been provided. D. Failure to sign in and sign out may be grounds to dispute invoices as verification of work cannot be made.