What does SILP stand for?

Saskatchewan International Labour Program - Canada (CROSS)

Section of International Law and Practice (EA)

Silver Pigeon - NCIC motorcycle make code

Sindacato Italiano Lavoratori del Petrolio - Italian Union of Oil Workers

Sindacato Italiano Lavoratori Postelegrafonici - Italian Union of Postal and Telegraph Workers

Solomon Islands Liberal Party - Political party (EY)