Written direction to commence delivery, installation, service, or the work provided for in the Contract. It is sent to the Contractor post award and states that the Contractor is authorized to commence work as of a specific date. Used primarily for construction contracts and/or when the Contractor must provide permits or other documents or information to the MTA after award but prior to commencing all or a portion of the work. The term is also used with regard to consultant contracts, in a manner synonymous with “Notice of Award,” authorizing the Consultant to commence work.