How to submit BAS responses: Partnership Toolbox, GUPS Web, paper maps and SWIM explained

Mar 5, 2026

The Census Bureau webinar outlines three BAS submission methods—BAS Partnership Toolbox for ArcGIS Pro, GUPS Web, and paper maps—and demonstrates SWIM as the secure upload portal; the demo shows selecting program 'Boundary and Annexation Survey,' choosing the reporting entity type, attaching the basTBx.zip file and receiving an email confirmation.

The full story

A Census Bureau presenter (Speaker S3) demonstrated the three accepted submission methods for the Boundary and Annexation Survey and explained how SWIM (Secure Web Incoming Module) is used to upload digital submissions. "SWIM is the official web portal for uploading materials and is the only secure method for submitting digital files," the presenter said, adding that email or standard file‑transfer protocol sites are not accepted.

Free newsletter

Sign up to keep reading.

Your free newsletter brings you what your city council, county, and school board discussed and decided.

or
Already have an account? Sign in