| Warning Letter — Tobacco | 572500 Jan 17, 2019 |
| Warning Letter — Vapor Vibes | 572088 Jan 10, 2019 |
| Warning Letter — DOLLAR GENERAL 16421 | 571873 Jan 10, 2019 |
| Warning Letter — HY-VEE WINE & SPIRITS | 571874 Jan 10, 2019 |
| Warning Letter — Gordie's BP | 571875 Jan 10, 2019 |
| Warning Letter — SEVERSON / SINCLAIR | 571640 Jan 3, 2019 |
| Warning Letter — Oasis E-Cig Shop | 571567 Jan 3, 2019 |
| Warning Letter — Virginia Short Stop / Clark | 571543 Jan 3, 2019 |
| Warning Letter — Casey's General Store | 571274 Dec 20, 2018 |
| Warning Letter — Daggett's Fresh Foods | 570795 Dec 13, 2018 |
| Warning Letter — Minit Mart / Mobil | 570515 Dec 13, 2018 |
| Warning Letter — M & H | 570149 Dec 6, 2018 |
| Warning Letter — HOLIDAY 6 | 570151 Dec 6, 2018 |
| Warning Letter — The Corner Bar | 569844 Nov 29, 2018 |
| Warning Letter — Central Market | 569845 Nov 29, 2018 |
| Warning Letter — Maynards Food Center | 569542 Nov 29, 2018 |
| Warning Letter — Dollar General | 569899 Nov 29, 2018 |
| Warning Letter — Dollar General | 569439 Nov 21, 2018 |
| Warning Letter — River's Edge Bait And Convenience | 569438 Nov 21, 2018 |
| Warning Letter — Mobil Service | 568896 Nov 15, 2018 |
| Warning Letter — Walgreens 13607 | 568973 Nov 15, 2018 |
| Warning Letter — Freeborn County Co-Op Oil/Mobil | 568823 Nov 15, 2018 |
| Warning Letter — Pump N Munch | 568671 Nov 8, 2018 |
| Warning Letter — Portland Food Mart | 568670 Nov 8, 2018 |
| Warning Letter — Pine Ridge Liquors | 568526 Nov 8, 2018 |
| Warning Letter — Farm Island Store And Off Sale Liquor / Tesoro | 568525 Nov 8, 2018 |
| Warning Letter — Casey's General Store | 568668 Nov 8, 2018 |
| Warning Letter — Circle K | 568137 Nov 1, 2018 |
| Warning Letter — Jeff's Little Store/Minnoco | 568189 Nov 1, 2018 |
| Warning Letter — Freedom | 568019 Nov 1, 2018 |
| Warning Letter — Holiday 307 | 568102 Nov 1, 2018 |
| Warning Letter — TA Travel Center / Shell | 568138 Nov 1, 2018 |
| Warning Letter — Raws For Paws | 555466 Oct 26, 2018 |
| Warning Letter — Casey's General Store #3540 | 567542 Oct 25, 2018 |
| Warning Letter — RED RIVER AG | 567359 Oct 25, 2018 |
| Warning Letter — Marathon | 567626 Oct 25, 2018 |
| Warning Letter — GOLD STAR DISTRIBUTION INC | 562931 Oct 19, 2018 |
| Warning Letter — Cenex | 566732 Oct 18, 2018 |
| Warning Letter — MEMORIES CAFE / CENEX | 566957 Oct 18, 2018 |
| Warning Letter — Cenex | 567089 Oct 18, 2018 |
| Warning Letter — C And S Country Store | 567090 Oct 18, 2018 |
| Warning Letter — Almich's Market | 567167 Oct 18, 2018 |
| Warning Letter — Hanson's Outpost | 566731 Oct 18, 2018 |
| Warning Letter — Backroads | 566482 Oct 11, 2018 |
| Warning Letter — Tim's Food Pride | 566569 Oct 11, 2018 |
| Warning Letter — Gilman Cooperative Creamery Association | 563944 Oct 5, 2018 |
| Warning Letter — Cenex | 566094 Oct 4, 2018 |
| Warning Letter — Super One Foods | 565996 Oct 4, 2018 |
| Warning Letter — Bruender's Corner Mart | 565929 Oct 4, 2018 |
| Warning Letter — Sinclair / Ruppert Oil Co. | 566096 Oct 4, 2018 |