The American Community Survey is a new nationwide survey designed to provide communities a fresh look at how they are changing. It will replace the long form in future censuses and is a critical element in the Census Bureau’s reengineered 2010 census plan.
This must be a requirement of US and Naturalized citizens only. The above the law group likely won't reply.

Some Question in this survey.

At what location did this person work LAST WEEK?


For whom did this person work?

Gross Income in the past 12 months?

Becasue of a Physical, mental, or emotional condition last 6 months or more, does this person have any difficulty in doing any of the following activities?

Is the grandparent currently responsible for most of the basic needs of any grandchildren under the age of 18.

Has this person ever served on active duty in the US Armed Forces, military Reserves, or National Guards?

Last Week, was this person on layoff from a job?

What is the value of this property?

How much is the regular monthly mortgage payments of this property?

http://www.census.gov/acs/www/

American Community Survey: Must I respond?

Question
Do I have to respond to the American Community Survey / Puerto Rico Community Survey?


Answer
Yes. Response to this survey is required by law (Section 221 of Title 13). Respondents are required to answer all questions on the American Community Survey (ACS) to the best of their ability. Your answers are very important because they represent the answers of many other similar households in your community. The data that you and others provide in response to this survey are required to manage or evaluate federal and state government programs. If you submit an incomplete form or provide data that are unclear, we will may contact you by phone or in person to obtain or clarify the missing information.

The ACS is part of the Decennial Census Program. It is a survey that is sent to a small percentage of our population on a rotating basis. These data previously were collected only in census years in conjunction with the decennial census. Since the ACS is conducted every year, rather than once every ten years, it will provide more current data throughout the decade. The Census Bureau may use the information it collects only for statistical purposes. Title 13 requires the Census Bureau to keep all information about you, and all other respondents, strictly confidential.