Regulations, explained
Compliance Hub
Chemical safety regulations, explained. Deep-dive articles on UN GHS, OSHA HCS, EU CLP, REACH and SDS authoring — with citations, timelines and regional comparisons.
Frameworks
Regulatory pillars
Each pillar covers one framework end to end. Open a pillar for its full article library.
United Nations Globally Harmonized System
International foundation for chemical hazard classification.
3 articles → OSHA HCSOSHA Hazard Communication Standard
US workplace chemical safety regulation aligning with GHS.
2 articles → CLPEU Classification, Labelling and Packaging Regulation
EU regulation 1272/2008 implementing GHS for the European market.
2 articles → SDSSafety Data Sheets
16-section document format communicating chemical hazards.
7 articles → REACHRegistration, Evaluation, Authorisation and Restriction of Chemicals
EU regulation for chemical registration, evaluation, authorisation and restriction.
2 articles → SVHCSubstances of Very High Concern under REACH
EU REACH SVHC identification, Candidate List, authorisation, and SCIP obligations.
2 articles →Original research
Where the language editions of Annex VI disagree
We compared the substance name in every row of CLP Annex VI across all 23 language editions against the EC and CAS numbers of the same row and found 33 entries that did not match — each quoted from the Official Journal with the act and the page, reported to ECHA and the EU Publications Office on 10 August 2026. Corrigenda published on 23 September 2026 corrected 29 of them.
Applied
On top of the regulations
What people actually do with them on site — grounded in your safety data sheets, hazard classification and chemical inventory.
Start here
SDS Authoring Software: What It Does and What It Costs
What SDS authoring software does, how vendors price it, and the published per-sheet and annual costs — plus why most vendors quote only on request.
SDS ·
Latest
Recently published
Chemical Incident Reporting and Recordkeeping
Report and record chemical incidents under OSHA Part 1904, EU Seveso/CAD and UK RIDDOR/COSHH: recordable vs reportable, plus the response workflow.
EHSChemical Safety Audit: Checklist and Requirements
How to run a chemical safety audit under OSHA PSM, EU Seveso inspections and ISO 14001/45001: the checklist, frequency and what auditors verify.
EHSChemical Risk Assessment: Steps, Template & Controls
How to carry out a chemical risk assessment under EU CAD and UK COSHH: the steps, what to document, the control hierarchy, and SDS-based inputs.
SDSSDS Authoring: How to Write a Safety Data Sheet
How to author a compliant safety data sheet — hazard classification first, the 16-section format, who is qualified to write it, and US (OSHA HCS) vs EU (REACH Annex II) rules.
SDSSDS Management: Compliance Obligations, Retention, and Best Practices
How to manage a compliant SDS library — accessibility, keeping safety data sheets current, retention rules, and manual vs software approaches under OSHA HCS and EU REACH.
SDSMSDS vs SDS: Key Differences and What's Required Today
MSDS vs SDS compared — the legacy Material Safety Data Sheet versus the GHS 16-section Safety Data Sheet, why the format changed, and which one is required in 2026.
Need a quick answer instead?
Look it up rather than read about it
These are lookups, not articles: they answer one question about one substance and get out of the way.
Substance database
Harmonised CLP classification for 3 650 substances, by name or CAS.
TransportUN number reference
ADR and 49 CFR entries side by side, with placards and special provisions.
PictogramsPictogram selector
Pick hazard classes, get the pictograms four jurisdictions require.
Label makerLabel maker
Build a print-ready GHS label against CLP, OSHA, WHMIS or GB CLP rules.