Specifications include, but are not limited to: The work includes, but is not limited to complete mobile fueling system to support the operation of up to 15 hydrogen fuelcell electric buses at the Sunset Maintenance Facility (SMF). The mobile fueling system is intended to be used as an interimmethod of fueling fuel cell electric buses during the design and construction of a larger and permanent hydrogen fuelingsystem. The permanent-facility project will be bid under a separate scope/contract. The mobile fueling system is expected todispense hydrogen (delivered under a separate procurement) via compression of gaseous hydrogen supplied to the facility via‘drop and swap’ tube trailers to the hydrogen fuel cell electric buses or by pumping and gasifying cryogenic-liquid hydrogen.The supplier for this scope of work shall provide all of the physical infrastructure required for the mobile fueling system to operate