encyclopedia

NON-BIDDABLE TRIPPER

A driving assignment, more than three hours long but not longer than seven hours, during either the morning or evening peak periods. Some non-biddable trippers, less than five hours long, are assigned to part-time operators. All other non-biddable trippers are…

NON-BRIDGEABLE GAP SECTION

A gap in the contact rail that is longer than the distance between the front and rear collector shoes on a vehicle.

NON-COMBUSTIBLE CONSTRUCTION

Construction minimizing the hazards of fire by the use of non-combustible materials for structural elements or assemblies, and by limiting the amount of combustible materials that are incorporated into the building construction.

NON-COMPETITIVE NEGOTIATION

The procurement process by which a proposal is solicited from only one source (either a sole source or a source providing critical advantages) or, after solicitation of multiple prospective sources, only one source submits a proposal; negotiations are held with…

NON-HOME-BASED TRIP

A trip that has neither its origin nor its destination at a residence. (TRB)

NON-REIMBURSABLE

An operating-budget expense, one that cannot be charged as a capital-budget expense reimbursement.

NON-REVENUE VEHICLES

All vehicles owned by MTA which do not carry fare paying passengers.

NONATTAINMENT AREA

Any geographic region of the United States that the U.S. Environmental Protection Agency (EPA) has designated as not attaining the federal air quality standards for one or more air pollutants, such as ozone and carbon monoxide.

NONCONFORMANCE

Those characteristics which do not conform to stated requirements for the characteristic.