Regulations last checked for updates: May 01, 2025

Title 23 - Highways last revised: Apr 18, 2025
§ 1340.11 - Post-approval alterations to survey design.

After NHTSA approval of a survey design, States shall submit for NHTSA approval any proposed alteration to their survey design, including, but not limited to, sample design, seat belt use rate estimation method, variance estimation method and data collection protocols, at least three months before data collection begins.

authority: 23 U.S.C. 402; delegation of authority at 49 CFR 1.50
source: 76 FR 18056, Apr. 1, 2011, unless otherwise noted.
cite as: 23 CFR 1340.11