The Pakistan Administrative Service, or PAS is an elite cadre of the Civil Services of Pakistan. The Pakistan Administrative Service over the years has emerged as the most consolidated and developed post-colonial institution in Pakistan, with the PAS officers of Grade 22 often seen as stronger than the federal government ministers. The service of PAS is generalist in nature and officers are assigned to different departments all across Pakistan during the course of their careers. Almost all of the country's highest-profile positions such as the Federal Secretaries, the provincial Chief Secretaries, and chairmen of top-heavy organizations like the National Highway Authority, Trading Corporation of Pakistan and State Life Insurance Corporation usually belong to the Pakistan Administrative Service.