Domain-specific rule sets

Domain-specific rule sets process free-form data, data not limited by structure constraints. The data that the rule sets process is single-domain data, pertaining to specific types of information content: name, address, or area.

The standard domain-specific rules sets for each country or region are as follows:
NAME
Individual, business, and organization names.
ADDR
Street name, number, unit, and other address information.
AREA
City, state, region, and other locale information.