Hottinger, Brüel & Kjær
Subjects · rules HBK submits on
Distinct UN Regulations, rules and programmes reached through this stakeholder's submissions. The chart shows document activity over the last 12 months — tap a bar to see the documents for that year.
Subject Last document Engagement · last 12 mo
UN R51
UN R51 Vehicle Noise
29 Jul 2019
Aug 2025 – Jul 2026 · 0 total