The 2010 Census Assessment of the Update Enumerate Operations documents the results of four 2010 Census field enumeration operations. The four operations that comprised the Update Enumerate Operations were:

• Update Enumerate Production,
• Update Enumerate Quality Control,
• Remote Update Enumerate, and
• Remote Alaska.

The Update Enumerate Operations were conducted in communities where housing units do not have traditional mailing addresses (for example, no house number or street name), and the geography is very remote or rural. All four of these operations involve 2010 Census enumerators interviewing and verifying the status of housing units in areas that did not receive a mail back 2010 Census questionnaire. Enumeration methodology was essentially the same across the Update Enumerate Operations; however, the implementation of each operation differs according to the climate, cultural characteristics, and remoteness of the geographical areas in which the communities or housing units were located.