Alternate Name	Item#	Length	Source of Standard	Column #
	1844	2	SEER	2258-2259

Description
USPS abbreviation for the state (including U.S. territories, commonwealths, or possessions), or Canada Post abbreviation for the Canadian province/territory of the follow-up contact's current usual residence. If the patient has multiple tumors, the follow-up contact state should be the same for all tumors.

Rationale
Sometimes registries carry out follow-up by contacting the patient and other contacts by a letter or phone call to ascertain their vital status. When a patient's current address is unknown or the patient is for some reason not to be contacted (e.g., patient is a minor child), the most current name, address and phone number of another contact, such as a relative or neighbor are needed. This information may also be useful for conducting research studies.

Codes (in addition to USPS and Canadian Postal Service abbreviations)

CD	Resident of Canada, NOS (province/territory unknown)
US	Resident of United States, NOS (state/commonwealth/territory/possession unknown)
XX	Resident of country other than the United States (including its territories, commonwealths, or possessions) or Canada, and country is known
YY	Resident of country other than the United States (including its territories, commonwealths, or possessions) or Canada, and country is unknown
ZZ	Residence unknown