Lowest price technically acceptable (LPTA)

LPTA is described in FAR 15.101-2. The solicitation sets the evaluation factors and the standards for acceptability; proposals are evaluated against those standards but not ranked on them, and tradeoffs are not permitted. Among the acceptable proposals, the lowest price wins, subject to a responsibility check.

Congress has restricted LPTA in recent years. For the Department of Defense, DFARS 215.101-2-70 limits when it may be used and prohibits it for several kinds of services, such as information technology and knowledge-based professional services. Read Section M to confirm which method applies.

Meet every requirement clearly and completely, because one unacceptable factor eliminates the proposal. Keep the technical response tight and easy to check, and spend the effort on a lean, realistic price. Extra features add cost without adding score.

Writing a tradeoff-style proposal full of extras, missing a single acceptability standard, and pricing so low the agency questions whether the work can be done.

LPTA also changes the review. A Red Team for an LPTA bid checks acceptability against each standard rather than looking for strengths, and the pricing review deserves as much attention as the technical one, because the lowest acceptable price decides the award.