All male Singapore citizens and PRs must enlist in the NS unless they are exempted. You are exempted from NS as the first-generation PR if you get PR under the PTS or GIP scheme. However, if you get your PR under the Foreign Students scheme or Sponsored scheme, you are liable to enlist once you reach the age of 16 ½ years old. Also the second generation male immigrant must enlist for military service. That means if your family is granted PR under PTS scheme, your male child will have to serve the NS.