Ultimate Chemical Inventory: OSHA & Tier II Template

The One-List Solution

For safety managers, maintaining separate chemical lists for OSHA compliance and EPA Tier II reporting is a waste of time and a recipe for error. The "Ultimate Chemical Inventory" is a single, master dataset that satisfies the requirements of both the OSHA Hazard Communication Standard (29 CFR 1910.1200) and the EPA's Emergency Planning and Community Right-to-Know Act (EPCRA).

With the recent alignment of EPA Tier II hazard categories to the OSHA GHS physical and health hazards, the friction between these two regulations has been reduced. However, the data capture requirements remain rigorous.

Essential Data Fields for the Template

To build a compliant master inventory, your spreadsheet must capture specific fields that feed into both regulatory reports.

1. Identity & Location

Product Identifier: Must match the SDS exactly (OSHA requirement).

CAS Number: Critical for screening against the EPA's List of Lists for Extremely Hazardous Substances (EHS).

Storage Location: Specificity matters. "Site Layout Zone 4" is better than "Jobsite."

2. Quantities (The Tier II Trigger)

Max Daily Amount (lbs): The highest inventory level reached at any point in the year.

Average Daily Amount (lbs): The weighted average.

Container Type: (e.g., Drum, Tote, Cylinder).

Physical State: (Solid, Liquid, Gas).

3. Hazard Classifications (The New Standard)

You must now map chemicals to the specific OSHA GHS categories rather than the old EPA "Five Hazard Categories" (Fire, Pressure, Reactivity, Immediate, Delayed).

Physical Hazards: Flammable Liquid (Cat 2), Oxidizing Solid (Cat 1), Aerosol (Cat 3).

Health Hazards: Carcinogenicity (Cat 1A), Skin Corrosion (Cat 1B), Specific Target Organ Toxicity.

Reporting Thresholds: When to Report?

For construction sites, the 2026 reporting thresholds are the triggers that turn a simple inventory list into a mandatory federal report:

**10,000