1st and 2nd Quarter 2019 GAS-1200 Claim For Refund - Nonprofit Organizations 1st and 2nd Quarter 2019 GAS-1200 Claim For Refund - Nonprofit Organizations Documents Gas 1200 Rev 1 19 web 11 15 18 v1 Final gas 1200 instructions rev 1 18 web v4 final Gas 1200 Rev 1 19 web 11 15 18 v1 Final