| Warning Letter — I Quit Vapor | 580910 May 2, 2019 |
| Warning Letter — DALTONS EXPRESS | 580909 May 2, 2019 |
| Warning Letter — J-N-J Liquor And More | 580879 May 2, 2019 |
| Warning Letter — QuikTrip | 580853 May 2, 2019 |
| Warning Letter — Royal Vapor KC | 580883 May 2, 2019 |
| Warning Letter — Cenex | 580881 May 2, 2019 |
| Warning Letter — BP / Bargain Smokes And Liquor | 580852 May 2, 2019 |
| Warning Letter — Discount Smokes & Liquor | 580907 May 2, 2019 |
| Warning Letter — Get It N Go Express South | 580275 Apr 25, 2019 |
| Warning Letter — Everyday / Conoco | 580315 Apr 25, 2019 |
| Warning Letter — Jiffy Stop | 580312 Apr 25, 2019 |
| Warning Letter — Family Dollar | 579867 Apr 25, 2019 |
| Warning Letter — Dave's Country Market | 579973 Apr 25, 2019 |
| Warning Letter — Dollar General Store #4920 | 579868 Apr 25, 2019 |
| Warning Letter — Dollar General 16778 | 580277 Apr 25, 2019 |
| Warning Letter — Rapid Robert's | 579896 Apr 25, 2019 |
| Warning Letter — Quick Shop / Gulf | 579883 Apr 25, 2019 |
| Warning Letter — Phillips 66 | 579895 Apr 25, 2019 |
| Warning Letter — Casey's General Store 1558 | 579897 Apr 25, 2019 |
| Warning Letter — Dollar General 15436 | 580279 Apr 25, 2019 |
| Warning Letter — Zipz 3 / Conoco | 579894 Apr 25, 2019 |
| Warning Letter — Dollar General #18513 | 580105 Apr 25, 2019 |
| Warning Letter — Braymer Quick Shop | 579881 Apr 25, 2019 |
| Warning Letter — TA / Concordia Travel Center | 580276 Apr 25, 2019 |
| Warning Letter — Dollar General 11693 | 579876 Apr 25, 2019 |
| Warning Letter — Jefferson Street / Conoco | 579978 Apr 25, 2019 |
| Warning Letter — Casey's General Store | 580314 Apr 25, 2019 |
| Warning Letter — C-Store Bolivar | 579889 Apr 25, 2019 |
| Warning Letter — PRICE CUTTER PLUS | 579888 Apr 25, 2019 |
| Warning Letter — 1 Stop/Cenex | 579891 Apr 25, 2019 |
| Warning Letter — Harps Food Store | 579972 Apr 25, 2019 |
| Warning Letter — Hy-Vee | 579975 Apr 25, 2019 |
| Warning Letter — Gerbes | 579977 Apr 25, 2019 |
| Warning Letter — Discount Smokes & Liquor | 579887 Apr 25, 2019 |
| Warning Letter — Family Dollar 4076 | 580280 Apr 25, 2019 |
| Warning Letter — Casey's General Store | 579974 Apr 25, 2019 |
| Warning Letter — Family Dollar | 580313 Apr 25, 2019 |
| Warning Letter — KUM AND GO 454 | 579976 Apr 25, 2019 |
| Warning Letter — Kwikserv 5 / Valero | 580278 Apr 25, 2019 |
| Warning Letter — DOC'S STOP | 579893 Apr 25, 2019 |
| Warning Letter — Sharp's Mini Mart | 579399 Apr 18, 2019 |
| Warning Letter — The 4 Way | 579552 Apr 18, 2019 |
| Warning Letter — Kaleidosmok | 579216 Apr 18, 2019 |
| Warning Letter — Dollar General 12522 | 579555 Apr 18, 2019 |
| Warning Letter — Hollister Food Mart/ Phillips 66 | 579189 Apr 18, 2019 |
| Warning Letter — MP FUELS | 579221 Apr 18, 2019 |
| Warning Letter — Schnucks Markets #196 | 579559 Apr 18, 2019 |
| Warning Letter — Conoco | 579256 Apr 18, 2019 |
| Warning Letter — L & L Stores | 579548 Apr 18, 2019 |
| Warning Letter — Price Cutter | 579558 Apr 18, 2019 |