housing unit addresses, remove duplicate addresses, and generally correct the Master Address File, independent of benefits derived from being cross-referenced to an updated TIGER database;

  1. More effective definitions of housing units and methods to obtain accurate address listings for structures containing multiple housing units, as it is not sufficient to know only the address or geographic coordinates of the structure location;

  2. Detail on the temporal sequencing and adequacy of address updates from the U.S. Postal Service’s Delivery Sequence File, the Census Bureau’s Community Address Updating System, and as-yet unspecified local partnership programs;

  3. More effective means to define, list, and enumerate group quarters living arrangements, which should be done in coordination with the development and maintenance of the MAF; and

  4. A detailed plan for Objective Five (quality metrics) of the MAF/TIGER Enhancements Program, including a program of evaluation and assessment of MAF coverage and input to the MAF/TIGER Redesign (Objective Two), so that the revised database structure includes appropriate address source codes and other useful variables for evaluation.

Recommendation 3.2: The Census Bureau should create and staff a position to oversee the development and maintenance of the MAF as a housing unit inventory, with a focus on improving methods to designate, list, and update units. This position should be responsible for development and implementation of plans drawn up consistent with Recommendation 3.1.

Recommendation 3.3: The Census Bureau should pursue more effective partnership and research collaboration with the U.S. Postal Service, including but not limited to further work on “undeliverable as addressed” items from the 2000 census, assessment of the address coverage quality of the Delivery Sequence File (DSF), and possibilities for more accurate translation of



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