# Chapter 2 - Geocode

Source: https://developer.avalara.com/products/communications/integration-guides/dev-guide_geo_soap/geocode/

-   [Previous Chapter](/communications/dev-guide_geo_soap/getting-started)
-   [Next](/communications/dev-guide_geo_soap/geocode/address-geocoding/)

The input to AFC Geo SaaS Pro Soap is either an [address](/communications/dev-guide_geo_soap/geocode/address-geocoding/) or a [latitude/longitude coordinate pair](/communications/dev-guide_geo_soap/geocode/lat-long-geocoding/). Indicate in [address geocoding](/communications/dev-guide_geo_soap/geocode/address-geocoding/) if [USPS CASS Validation](/communications/dev-guide_geo_soap/geocode/cass/) should be performed - setting `CassCertify` to `true` ensures the most accurate address.

AFC Geo primarily uses NavTeq map data to return one or more locations from the street databases, providing you details about the location (such as PCode and [Special Tax Jurisdiction](/communications/dev-guide_geo_soap/geocode/special-tax-jurisdictions/) information) and a confidence [score](/communications/dev-guide_geo_soap/geocode/scoring/). Census Block (`CensusBlockGroup`) and Census Tract (`CensusTract`) data is available in the [geocoding results](/communications/dev-guide_geo_soap/reference/address-location/) (use [Options](/communications/dev-guide_geo_soap/geocode/options/) bitwise value 32 to request the census data).

### AFC Geo Viewer

Use [AFC Geo Viewer](https://communications.avalara.net/AFC/GeoViewer) for US address verification and assignment of tax jurisdictions through the input of a [street address](/communications/dev-guide_geo_soap/geocode/address-geocoding/) or a [latitude and longitude coordinate pair](/communications/dev-guide_geo_soap/geocode/lat-long-geocoding/). AFC Geo Viewer is accessible on the [Geo Viewer](https://communications.avalara.net/AFC/GeoViewer) page of the [AFC Customer Portal](https://communications.avalara.net).

-   [Previous Chapter](/communications/dev-guide_geo_soap/getting-started)
-   [Next](/communications/dev-guide_geo_soap/geocode/address-geocoding/)