The ALS User Services Office is located on the mezzanine in Building 6 (the ALS). The office is open Monday through Friday from 8:00 a.m. to 12:00 noon, and from 1:00 p.m. to 5:00 p.m. New user registration is done on weekdays from 8:00 a.m. to 12 noon, and from 1:00 p.m. to 4:00 p.m. only; users arriving outside these hours should consult After-hours Access to the ALS for information about temporary access to the facility.

The staff of the User Services Office is available to assist new users as they complete their registration and safety training requirements. Once the registration process is completed, a photo identification/site access badge will be issued. In addition to providing general administrative support to users, the User Services Office can provide information about user forms, ALS user publications, housing, and parking requests and permits.