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2. Significant New Alternatives Policy - Wikipedia

   en.wikipedia.org/wiki/Significant_New...

   Originally, Section 612 was limited by ozone-depleting chemicals. However, after passing regulations to phase-out R134a, an HFC refrigerant with no ozone-depleting potential, this phase-out was defended by a subsidiary of DuPont siding with the EPA as it was challenged by a major manufacturer of R134a, and was struck down in 2017. This decision ...

3. Section 608 - Wikipedia

   en.wikipedia.org/wiki/Section_608

   EPA regulations require the test to be a "closed book" proctored exam. The only outside materials allowed are a temperature / pressure chart, scratch paper and a calculator. The certification exam contains 4 sections: Core, Type I, Type II, and Type III. Each section contains 25 multiple choice questions.

4. trans-1,3,3,3-Tetrafluoropropene - Wikipedia

   en.wikipedia.org/wiki/Trans-1,3,3,3-tetrafluoro...

   trans-1,3,3,3-Tetrafluoropropene (HFO-1234ze(E), R-1234ze(E)) is a hydrofluoroolefin.It was developed as a "fourth generation" refrigerant to replace fluids such as R-134a, as a blowing agent for foam and aerosol applications, and in air horns and gas dusters. [3]

5. R-454B - Wikipedia

   en.wikipedia.org/wiki/R-454B

   Because of its reduced global warming potential (GWP), R-454B is intended to be an alternative to refrigerant R-410A in new equipment. [2] [3] [4] R-454B has a GWP of 466, which is 78 percent lower than R-410A's GWP of 2088. [2] R-454B is non-toxic and mildly flammable, with an ASHRAE safety classification of A2L. In the United States, it is ...

6. New EPA rules for about 200 US chemical manufacturers take ...

   www.aol.com/epa-rules-200-us-chemical-132933974.html

   The US Environmental Protection Agency issued new rules on Tuesday to protect neighborhoods near more than 200 manufacturing facilities that release airborne toxins such as ethylene oxide ...

7. Hazardous waste in the United States - Wikipedia

   en.wikipedia.org/wiki/Hazardous_waste_in_the...

   EPA developed strict requirements for all aspects of hazardous waste management including the treatment, storage, and disposal of hazardous waste. In addition to these federal requirements, states may develop more stringent requirements or requirements that are broader in scope than the federal regulations.

8. New EPA rule says 218 US chemical plants must reduce toxic ...

   www.aol.com/news/epa-rule-says-200-us-130057398.html

   The new rule will slash more than 6,200 tons (5,624 metric tonnes) of toxic air pollutants annually and implement fenceline monitoring, the EPA said, addressing health risks in surrounding ...

9. New EPA rule to reduce methane emissions mirrors regulations ...

   www.aol.com/epa-rule-reduce-methane-emissions...

   Dec. 5—A new federal environmental rule aiming to reduce methane emissions produced by the oil and gas industry bears a resemblance to standards New Mexico enacted in recent years. Environmental ...