Keeping a fab compliant: what gets measured and filed

Arizona is in the middle of the largest semiconductor build-out in the country. The EHS (environmental, health and safety) work that comes with it falls more on the supply chain than on the fabs themselves.

TSMC Arizona in north Phoenix announced an additional $100 billion in July 2026, bringing its total Arizona investment to $265 billion. The plan covers 10 fabs, two advanced packaging plants and a research and development center. More than 3,500 people work on site now, and Fab 1 has been in volume production since late 2024.

Intel runs its Ocotillo campus in Chandler, including the new Fab 52 on the 18A process. Amkor Technology is building a $7 billion advanced packaging and test campus in Peoria. It broke ground in October 2025, and production is expected in early 2028.

The fabs have large EHS teams of their own. Their Tier-2 and Tier-3 suppliers, the ones further down the chain, do not, and that is where the requirements land.

What the supply chain requirement actually says

TSMC's Supplier Sustainability Standards v3.0 (July 6, 2026) address this directly and name two international standards:

• ISO 14001, the environmental management system standard. Suppliers with factories or chemical analysis labs that need environmental permits under local rules should obtain ISO 14001 certification and keep the certificate valid (section C.M.1.3).
• ISO 45001, the occupational health and safety management system standard. Suppliers with factories of more than 30 production workers should obtain ISO 45001 certification, and so should contractors in high-risk work (section B.M.1.3).

Note the verb: "should," not "shall." It is an expectation that depends on a supplier's size, risk level or permit status, not a requirement for everyone. A purchasing contact will know the difference, but the direction is clear, and for a supplier trying to stay on an approved vendor list the effect is real.

Both standards call for a management system. We help you build it and prepare for the audit.

→ ISO 14001 consulting · ISO 45001 consulting · Transitioning to ISO 14001:2026

What workers are actually exposed to

Each hazard in a semiconductor or electronics plant is well understood on its own. What is unusual is having all of them in one facility.

Acids: hydrofluoric, sulfuric, nitric and phosphoric. Hydrofluoric acid (HF) needs to be treated separately, because even a small HF exposure is a medical emergency and the response plan matters more than the air monitoring.

Solvents: isopropanol, acetone, N-methylpyrrolidone (NMP), propylene glycol methyl ether acetate (PGMEA) and their relatives, mostly at wet benches and in cleaning work.

Specialty gases: arsine, phosphine, silane, diborane and the dopants. For most of these, the right tool is continuous gas detection, not periodic personal sampling, and one cannot stand in for the other.

Metals: in packaging, plating, bonding and lead-frame work.

Noise: from vacuum pumps, chillers, compressed air and mechanical equipment. It is often overlooked in an industry that thinks of itself as a cleanroom.

→ Air monitoring surveys · Noise surveys

Form R and TRI reporting, which surprises people

Semiconductor manufacturing is covered by the Toxics Release Inventory (TRI), EPA's annual reporting program for toxic chemical releases, and EPA publishes guidance written for this industry.

The reporting form is Form R, and facilities that cross the thresholds for solvents, acids and metals must file one each year. Arizona facilities that file must also send the state a Toxic Data Report on the same July 1 deadline, and prepare a pollution prevention plan.

That state requirement is easy to miss, and filing the federal Form R does not satisfy it.

→ Form R and Toxics Release Inventory (TRI) reporting · Arizona's pollution prevention plan and Toxic Data Report