ommercially available off- the-shelf items.) 3502-007 Page 14 of 19 EFTA_00001365 EFTA00156706 15JA5421P00000117 Page 15 of 19 (38) 52.223-11, Ozone-Depleting Substances and High Global Warming Potential Hydrofluorocarbons (Jun 2016) (E.O. 13693). (39) 52.223-12, Maintenance. Service. Repair. or Disposal of Refrigeration Equipment and Air Conditioners (Jun 2016) (E.O.