The British Home Office has expanded its Biometric Residence Permit program to include more immigration categories.

The changes, which took effect on Feb. 29, make the biometric residence permits mandatory for anyone who’s applying to stay in the UK for more than six months, as well as those who apply for “indefinite leave to remain” status.

The Home Office captures fingerprint and facial image data for the permits. Permit seekers can apply for the permits in person, at the post office or online.