In this issue: 1. World Ozone Day 2019, Letter to National Ozone Officers 2. Women in the refrigeration and air-conditioning industry: Personal experiences and achievements 3. HS Codes for HFCs - Advice for countries in advance of the 2022 HS code update 4. Update on new refrigerants designations and safety classifications - factsheet 5. Se rafraîchir durablement - Tribune par Inger Andersen , Directrice exécutive du programme des Nations unies pour l’environnement 6. Why demand for cooling could make the world hotter 7. The worst wildfires can send smoke high enough to affect the ozone layer 8. A synthetic view of the GWP of refrigerant fluids, versus their cooling capacity and flammability 9. Life cycle cost-benefit analysis of refrigerant replacement based on experience from a supermarket project - Study 10. University of Birmingham and International Solar Alliance help 'sun-rich' farmers 11. Measures on counteraction to illegal trade in ozone-depleting substances discussed in Ashgabat 12. NatRefs cited in Italy’s first survey of HFC-alternative technologies 13. As Europe swelters, illegal refrigerants are emitting four million cars' worth of CO2 14. US EPA Adjustments to the allowance system for controlling HCFC production and import, 2020-2029; and other updates