; background checks (a) Submission of biometric and biographic data The Secretary may not grant an alien adjustment of status under this division, on either a conditional or permanent basis, unless the alien submits biometric and biographic data, in accordance with procedures established by the Secretary. The Secretary shall provide an alternative procedure for aliens who are unable to provide such biometric or biographic data because of a physical impairment. (b) Background checks The Secretary shall use biometric, biographic, and other data that the Secretary determines appropriate to conduct security and law enforcement background checks and to determine whether there is any criminal, national security, or other factor that would render the alien ineligible for adjustment of status under this division, on either a conditional or permanent basis. The status of an alien may not be adjusted, on either a conditional or permanent basis, unless security and law enforcement background checks are completed to the satisfaction of the Secretary. 23003. Limitation on removal; application and fee exemption