[[https://www.fmcsa.dot.gov/regulations|
U.S. DEPARTMENT OF TRANSPORTATION

Federal Motor Carrier Safety Administration]]

[[https://www.transportation.gov/guidance|
DOT Guidance Portal]]

[[https://www.acea.auto/|
European Automobile Manufacturers Association]]

[[https://www.ecfr.gov/current/title-49|
US Gov Transportation ]]

[[https://ops.fhwa.dot.gov/freight/publications/size_regs_final_rpt/|
Federal Size Regulations for Commercial Motor Vehicles]]

[[https://www.jasic.org/e/index_e.htm|
 Japan Automobile Standards Internationalization Center (JASIC) ]]