This in-depth review considers and evaluates inputs from: INTERNAL LEARNING — Learning experiences — Near misses — Incidents — Self-assessments — Internal audits — Second party audits (i.e., customers) — Third-party audits (i.e., independent certified auditors, such as ISO) — Regulatory inspections, visits, and audits EXTERNAL LEARNING — Industry associations — Regulatory trends — Experiences and learnings from peer companies We use a methodical process for scheduling internal comprehensive EH&S audits of every facility, which assess the inherent risk in the facility’s process; the performance history; compliance with laws and applicable standards, including management systems; and the results of the last audit, in determining the audit frequency.