| Warning Letter — Lamarti's / Sinclair | 562928 Aug 23, 2018 |
| Warning Letter — Conoco | 562929 Aug 23, 2018 |
| Warning Letter — Cenex / Sky Haven Fastop And Motel | 562247 Aug 16, 2018 |
| Warning Letter — Pete's | 562066 Aug 16, 2018 |
| Warning Letter — Bharti Liquor | 562067 Aug 16, 2018 |
| Warning Letter — 7 Eleven Store | 562245 Aug 16, 2018 |
| Warning Letter — Hampton Express Mart / Phillips 66 | 562246 Aug 16, 2018 |
| Warning Letter — Casey's General Store | 562068 Aug 16, 2018 |
| Warning Letter — Pilot Travel Center #208 | 562244 Aug 16, 2018 |
| Warning Letter — 7-Eleven Store 19889D | 562153 Aug 16, 2018 |
| Warning Letter — Pyro City | 561433 Aug 9, 2018 |
| Warning Letter — Dollar General 2242 | 561603 Aug 9, 2018 |
| Warning Letter — Spirits Of LaPlata | 561426 Aug 9, 2018 |
| Warning Letter — CONOCO | 561756 Aug 9, 2018 |
| Warning Letter — CARROLLTON SINCLAIR | 561599 Aug 9, 2018 |
| Warning Letter — Thoele Convenience / Mobil 650 | 561605 Aug 9, 2018 |
| Warning Letter — United Mart / Phillips 66 | 561755 Aug 9, 2018 |
| Warning Letter — Soo Vape | 561757 Aug 9, 2018 |
| Warning Letter — Habibi Tobacco Vape | 561758 Aug 9, 2018 |
| Warning Letter — Countryside Convenience / Hunt Brothers Pizza | 561432 Aug 9, 2018 |
| Warning Letter — BP | 561429 Aug 9, 2018 |
| Warning Letter — VP Racing Fuels | 561604 Aug 9, 2018 |
| Warning Letter — Petro-Mart / Phillips 66 | 561754 Aug 9, 2018 |
| Warning Letter — MOBIL / GAS MART | 561434 Aug 9, 2018 |
| Warning Letter — Break Time | 561430 Aug 9, 2018 |
| Warning Letter — Mary's Market South | 560978 Aug 2, 2018 |
| Warning Letter — Marathon | 560254 Jul 26, 2018 |
| Warning Letter — 87Th Street Market | 560424 Jul 26, 2018 |
| Warning Letter — Turkey Creek Express / Shell | 560425 Jul 26, 2018 |
| Warning Letter — Smokeys Place | 560591 Jul 26, 2018 |
| Warning Letter — ZEDZ SMOKES AND LIQUOR | 560248 Jul 26, 2018 |
| Warning Letter — LOVES 669 | 560249 Jul 26, 2018 |
| Warning Letter — Dierbergs | 560246 Jul 26, 2018 |
| Warning Letter — Hitt Mini Mart | 560588 Jul 26, 2018 |
| Warning Letter — Country Mart | 560247 Jul 26, 2018 |
| Warning Letter — Casey's General Store | 560590 Jul 26, 2018 |
| Warning Letter — Speedy Mart | 560589 Jul 26, 2018 |
| Warning Letter — Shop 'N Save | 559795 Jul 19, 2018 |
| Warning Letter — Quick Stop Package Liquor | 559798 Jul 19, 2018 |
| Warning Letter — ZX / Midwest | 559800 Jul 19, 2018 |
| Warning Letter — In And Out Market | 559796 Jul 19, 2018 |
| Warning Letter — CASEY'S GENERAL STORE | 560018 Jul 19, 2018 |
| Warning Letter — Big E's Vapor Shop | 559799 Jul 19, 2018 |
| Warning Letter — VAPOR MAVEN | 559472 Jul 12, 2018 |
| Warning Letter — Fogarty's House Of Vapor | 559467 Jul 12, 2018 |
| Warning Letter — Circle K / Shell | 559029 Jul 12, 2018 |
| Warning Letter — AQUEOUS VAPOR | 559468 Jul 12, 2018 |
| Warning Letter — Duckees Drive Thru | 559473 Jul 12, 2018 |
| Warning Letter — CASEY'S GENERAL STORE 1631 | 559030 Jul 12, 2018 |
| Warning Letter — Dollar General | 558818 Jul 5, 2018 |