This is a 5-year IDIQ contract for a firm-fixed-price purchase of alternating current generators, with a minimum quantity of 261 and a maximum of 3,713 units to be delivered FOB Destination. The solicitation is a Sole Source/Limited Source procurement, and the Technical Data Package (TDP) will only be available to those designated manufacturers. To access the TDP, an authorized company representative must execute and return a Non-Disclosure Agreement to the Contract Specialist, and the firm must also request access through the Contract Opportunities system at SAM.gov. The contracting process may include a reverse auction after the solicitation closes, and to participate, contractors must be registered in that system and have completed the required online training.