Final answer:
EPA regulations stipulate that refrigeration equipment leaks must be repaired when the leak rate exceeds 35% of the charge per year to protect the environment.
Step-by-step explanation:
The EPA regulations require that leaking commercial or industrial process refrigeration equipment must be repaired when the leak rate exceeds 35% of the charge per year. This requirement aims to ensure environmental protection by controlling the release of ozone-depleting substances and greenhouse gases used in refrigeration systems.