| Warning Letter — St. Louis Market | 618690 Sep 30, 2021 |
| Warning Letter — Hi Point Liquor & Smoke Shop | 618604 Sep 30, 2021 |
| Warning Letter — Marcus Research Laboratory, Inc. | 615153 Sep 30, 2021 |
| Warning Letter — GREAT VAPE | 618688 Sep 30, 2021 |
| Warning Letter — MP FUELS | 618689 Sep 30, 2021 |
| Warning Letter — Missouri Analytical Laboratories, Inc. | 615319 Sep 30, 2021 |
| Warning Letter — Global Market And Grill 2 | 618597 Sep 30, 2021 |
| Warning Letter — LA TIENDA INTERNATIONAL GROCERY | 618510 Sep 28, 2021 |
| Warning Letter — Night Owl Tobacco | 618507 Sep 28, 2021 |
| Warning Letter — Mr. D's Smoke Shop | 618490 Sep 28, 2021 |
| Warning Letter — BP Of Affton | 618511 Sep 28, 2021 |
| Warning Letter — Ricketts Southside Plaza | 618491 Sep 28, 2021 |
| Warning Letter — Smoker Friendly 824 | 617862 Sep 16, 2021 |
| Warning Letter — Gier Oil Company Inc | 617943 Sep 16, 2021 |
| Warning Letter — Kirk's Kwik Gas And Grocery | 617830 Sep 16, 2021 |
| Warning Letter — Break Time | 617773 Sep 14, 2021 |
| Warning Letter — Mobil / On The Run | 617594 Sep 7, 2021 |
| Warning Letter — Mobil | 617503 Sep 2, 2021 |
| Warning Letter — WATSON GAS MART / BP | 617489 Sep 2, 2021 |
| Warning Letter — Habibi Vape Mart | 617405 Sep 2, 2021 |
| Warning Letter — STL RELEAF | 617339 Aug 31, 2021 |
| Warning Letter — Mr. Fuel | 617368 Aug 31, 2021 |
| Warning Letter — VaporWize | 617013 Aug 24, 2021 |
| Warning Letter — Case N Keg | 616933 Aug 24, 2021 |
| Warning Letter — Moscow Grocery / Gulf | 617000 Aug 24, 2021 |
| Warning Letter — Cosmic Dragon | 617071 Aug 24, 2021 |
| Warning Letter — Ascent Vapor Lounge | 616996 Aug 24, 2021 |
| Warning Letter — M And O Smoke Shop | 617039 Aug 24, 2021 |
| Warning Letter — BP / Speedmart | 617038 Aug 24, 2021 |
| Warning Letter — Dollar General 15615 | 616770 Aug 17, 2021 |
| Warning Letter — Phillips 66 / Speedy B's | 616535 Aug 5, 2021 |
| Warning Letter — Patterson Phillips 66 | 616491 Aug 3, 2021 |
| Warning Letter — Exxon / The Store | 616524 Aug 3, 2021 |
| Warning Letter — Casey's General Store #3450 | 616492 Aug 3, 2021 |
| Warning Letter — Blown Away Smoke Shop | 616521 Aug 3, 2021 |
| Warning Letter — Barnett's Dogpatch Corner | 616463 Aug 3, 2021 |
| Warning Letter — Dollar General Store | 616402 Aug 3, 2021 |
| Warning Letter — Alligator Jacks | 616485 Aug 3, 2021 |
| Warning Letter — 1St Phorm | 613715 Jul 29, 2021 |
| Warning Letter — Dollar General #1210 | 616369 Jul 29, 2021 |
| Warning Letter — Shamrock / Easy Shop | 616416 Jul 29, 2021 |
| Warning Letter — T's Liquor | 616383 Jul 29, 2021 |
| Warning Letter — Grindhouse Eliquid LLC | 616417 Jul 29, 2021 |
| Warning Letter — PB Vapors Inc | 616413 Jul 29, 2021 |
| Warning Letter — Dollar General 11564 | 616262 Jul 27, 2021 |
| Warning Letter — Puff Smart | 616263 Jul 27, 2021 |
| Warning Letter — Ultimate Vapor | 616285 Jul 27, 2021 |
| Warning Letter — Hucks | 616358 Jul 27, 2021 |
| Warning Letter — Ole' Town Smoke Shop | 616318 Jul 27, 2021 |
| Warning Letter — Captain 1 Gas And More | 616308 Jul 27, 2021 |