CFR > Title 15 - Commerce and Foreign Trade > SUBTITLE B—Regulations Relating to Commerce and Foreign Trade > CHAPTER I—BUREAU OF THE CENSUS, DEPARTMENT OF COMMERCE (parts 30 to 102) > PART 90—PROCEDURE FOR CHALLENGING CERTAIN POPULATION AND INCOME ESTIMATES > 90.6—Where to file challenge.

90.6—Where to file challenge.

A challenge must be prepared in writing by the unit of government and is to be filed with the Chief, Population Division, Bureau of the Census, Room 2011, Federal Building 3, Washington, D.C. 20233.