The Special Interest Group on Component & Separate Technical Units (SIG-C&STU) proposes amendments to UN R159, UN R158, UN R151, and UN R166 to add Component and Separate Technical Unit approvals. For UN R159, the proposal introduces a universal functional block structure separating Detection, Control, and Human Machine Interface functions, with Component or Separate Technical Unit fulfilling Detection and Control as minimum requirements. The regulation is restructured into three parts: vehicles without approved Component or Separate Technical Unit, vehicles with approved Component or Separate Technical Unit, and Component or Separate Technical Unit specifications. UN R158 adds new devices for Rear-View Camera Systems and Detection Systems to Part I, with corresponding installation requirements in Part II. The group requests written comments within four weeks and plans submission to Working Party 29 in June 2026.

Proposal to amend and supersede document ECE/TRANS/GRSG/2026/16. Supplement 1 to the 01 series of amendments to UN R166 addresses vehicles of categories X and Y. Vehicles of category Y and category X without manual mode intended for on-board operation are exempted from the scope. Vehicles of category X equipped with manual mode seated in a driver’s seat must comply with general provisions. Manual operation other than seated in a driver’s seat may apply alternative provisions. The Regulation applies to vehicles of category M₁ and N₁. New definitions of “Safety Concept” are introduced. Requirements address close-proximity front and lateral field of vision from adjusted driver’s ocular points.

The Special Interest Group on Component & Separate Technical Units (SIG-C&STU) proposes amendments to UN R159, UN R158, UN R151, and UN R166 to add Component and Separate Technical Unit approvals. For UN R159, the proposal introduces a universal functional block structure separating Detection, Control, and Human Machine Interface functions, with Component or Separate Technical Unit fulfilling Detection and Control as minimum requirements. The regulation is restructured into three parts: vehicles without approved Component or Separate Technical Unit, vehicles with approved Component or Separate Technical Unit, and Component or Separate Technical Unit specifications. UN R158 adds new devices for Rear-View Camera Systems and Detection Systems to Part I, with corresponding installation requirements in Part II. The group requests written comments within four weeks and plans submission to Working Party 29 in June 2026.

Proposal to amend and supersede document ECE/TRANS/GRSG/2026/16. Supplement 1 to the 01 series of amendments to UN R166 addresses vehicles of categories X and Y. Vehicles of category Y and category X without manual mode intended for on-board operation are exempted from the scope. Vehicles of category X equipped with manual mode seated in a driver’s seat must comply with general provisions. Manual operation other than seated in a driver’s seat may apply alternative provisions. The Regulation applies to vehicles of category M₁ and N₁. New definitions of “Safety Concept” are introduced. Requirements address close-proximity front and lateral field of vision from adjusted driver’s ocular points.