This document is not a NEPA filing. It is a Paperwork Reduction Act notice in which the National Highway Traffic Safety Administration seeks OMB approval for an extension with modification of its Investigation-Based Crash Data Studies information collection (OMB Control No. 2127-0706), covering the Crash Investigation Sampling System, Special Crash Investigation program, and Special Study data collection. The modification expands data collection sites from 56 to 73 and adds new crash types (non-motorists, motorcycles, large vehicles). Total annual burden increases from 12,063 to 17,521 hours. No environmental impacts or NEPA analysis are present in this notice.12