# HazComFast vs KHA Online SDS: Which Platform Fits Construction Better?
KHA Online SDS (now part of VelocityEHS) has been a long-standing name in SDS management. But is a general-industry SDS database the right choice for construction companies dealing with OSHA 1926.59 requirements? Here's how it compares to HazComFast.
At a Glance
| Feature | HazComFast | KHA Online SDS |
|---------|-----------|---------------|
| Target Market | Construction & field crews | All industries |
| SDS Database | Curated + custom upload | 7M+ manufacturer SDSs |
| Offline Access | Full offline-first | Cloud-only (requires internet) |
| GHS Labels | Built-in generator (Rev 7 & 8) | Not included |
| Chemical Inventory | With Tier II tracking | Basic chemical lists |
| Pricing Model | $49–$999/mo, transparent | Per-user, annual contract |
| Self-Serve Signup | Yes | No (sales required) |
| OSHA Defense Docs | Auto-generated | Not available |
The Offline Problem
This is the deal-breaker for many construction teams. KHA Online SDS is a cloud-only platform—if your crew loses cell signal (common in basements, tunnels, rural sites, or concrete structures), they cannot access SDSs. Period.
OSHA requires that SDSs be "readily accessible during each work shift" (29 CFR 1926.59(g)(8)). A cloud-only system on a jobsite with spotty signal is a citation waiting to happen.
HazComFast was engineered [offline-first](/offline-sds-access). Every SDS, label, and safety document syncs locally and works without any internet connection. Read more about why [cloud-only SDS apps fail on construction sites](/blog/cloud-only-sds-apps-fail-construction).
Winner: HazComFast — the only compliant option for sites without reliable connectivity.
SDS Database Size vs. Relevance
KHA boasts access to 7+ million SDSs from manufacturers worldwide. That sounds impressive—but construction crews typically use 20–200 chemicals. Having 7 million SDSs in