Migratory agricultural workers may have both a temporary address that reflects where they live when they are working in the community, as well as a permanent or “downstream” address that may be far from the location of their current work and the site where they are receiving care. For the purpose of the UDS report, health centers are to report the ZIP code of where the patient was housed when they received care by the health center. Note that migratory agricultural worker patients may also be seen by health center providers in their home, or “downstream” community, and will still be considered migratory agricultural workers. For patients where a precise ZIP code is unavailable (e.g., living in cars or on the land), the ZIP code for the location (fixed site or mobile camp outreach) where they received services should be used.