(US, Navy) Initialism of landing provisions sub surface - diesel powered amphibious transport submarine

Initialism of loss prevention officer.

Initialism of London Philharmonic Orchestra.

(military) Initialism of low-probability-of-intercept.

(astronomy, US) Initialism of Lunar and Planetary Institute.

(computing) line printer / laser periodontal therapy / (Australia) listed property trust / licensed psychiatric technician / licensed physical therapist / (computing) licensed penetration tester

(biochemistry) Initialism of lipoprotein lipase.

(politics) Initialism of Libertarian Party (United States).

Initialism of Lugansk People's Republic. or Initialism of Luhansk People's Republic.

(US, law enforcement) Abbreviation of license plate recognition. / Abbreviation of line printer. / Abbreviation of lawful permanent resident.