NATIONAL TRANSPORTATION SAFETY BOARD NTSB NATIONAL TRANSPORTATION SAFETY BOARD U.S GOV'T EXECUTIVE TRANSPORTATION HEALTH/SAFETY ENVIRONMENT U.S GOVERNMENT AND CONSTITUTION EXECUTIVE AGENCY CREATED 1967 TITLE OF CHIEF OFFICER CHAIR FUNCTIONS ENSURES THE SAFETY OF TRANSPORTATION SYSTEMS INVESTIGATES ACCIDENTS INVOLVING AIRPLANES RAILROADS PIPELINES SHIPS AND MOTOR VEHICLES CONDUCTS RESEARCH STUDIES ON SAFETY MAKES RECOMMENDATIONS TO GOVERNMENT AGENCIES THE TRANSPORTATION INDUSTRY AND OTHERS REGARDING SAFETY MEASURES AND PRACTICES EVALUATES REGULATIONS AND PROCEDURES INVOLVED IN THE TRANSPORTATION OF HAZARDOUS MATERIALS
