| Warning Letter — Walgreens 12151 | 564677 Sep 13, 2018 |
| Warning Letter — Walgreens #2798 | 564316 Sep 13, 2018 |
| Warning Letter — Value Market | 564311 Sep 13, 2018 |
| Warning Letter — Valero | 564551 Sep 13, 2018 |
| Warning Letter — Washington Township Moose Lodge 2138 | 564337 Sep 13, 2018 |
| Warning Letter — BP Shop | 564322 Sep 13, 2018 |
| Warning Letter — Circle S Mart | 564332 Sep 13, 2018 |
| Warning Letter — Discount Tobacco | 564327 Sep 13, 2018 |
| Warning Letter — Obadiah's Smoke Shop | 564680 Sep 13, 2018 |
| Warning Letter — Casey's General Store 1959 | 563750 Sep 6, 2018 |
| Warning Letter — Sunoco / JP Stop N' Shop | 563928 Sep 6, 2018 |
| Warning Letter — All Star / Food Mart | 563744 Sep 6, 2018 |
| Warning Letter — Hoosier Market | 563751 Sep 6, 2018 |
| Warning Letter — Family Express | 563749 Sep 6, 2018 |
| Warning Letter — Kroger Fuel Center | 563745 Sep 6, 2018 |
| Warning Letter — One Stop / Market Mercado | 563742 Sep 6, 2018 |
| Warning Letter — Marathon | 563747 Sep 6, 2018 |
| Warning Letter — Country Mark | 563260 Aug 30, 2018 |
| Warning Letter — Artisan Vapor Co, Castleton IN | 563310 Aug 30, 2018 |
| Warning Letter — Circle K | 563315 Aug 30, 2018 |
| Warning Letter — Family Dollar 7424 | 563311 Aug 30, 2018 |
| Warning Letter — Sunoco 7400757 | 563513 Aug 30, 2018 |
| Warning Letter — 1 Stop Express / CountryMark | 563312 Aug 30, 2018 |
| Warning Letter — Casey's General Store 3590 | 563313 Aug 30, 2018 |
| Warning Letter — Biomet, Inc. | 558176 Aug 24, 2018 |
| Warning Letter — River Valley Express / Shell | 562876 Aug 23, 2018 |
| Warning Letter — Family Dollar 4766 | 562488 Aug 23, 2018 |
| Warning Letter — Marathon / Daily Express | 562690 Aug 23, 2018 |
| Warning Letter — Family Dollar #7916 | 562735 Aug 23, 2018 |
| Warning Letter — Ruler Foods | 561903 Aug 16, 2018 |
| Warning Letter — BP | 561902 Aug 16, 2018 |
| Warning Letter — Marathon / Hometown Express | 562330 Aug 16, 2018 |
| Warning Letter — Walgreens | 561905 Aug 16, 2018 |
| Warning Letter — Casey's General Store | 561450 Aug 9, 2018 |
| Warning Letter — Casey's General Store | 561595 Aug 9, 2018 |
| Warning Letter — Country Oasis Food Mart / Marathon | 561577 Aug 9, 2018 |
| Warning Letter — Murphy USA 6848 | 561452 Aug 9, 2018 |
| Warning Letter — BP | 561227 Aug 2, 2018 |
| Warning Letter — Marathon | 561082 Aug 2, 2018 |
| Warning Letter — Tobacco Farm | 560940 Aug 2, 2018 |
| Warning Letter — WALGREENS 3722 | 561083 Aug 2, 2018 |
| Warning Letter — Discount Tobacco And Deli | 561081 Aug 2, 2018 |
| Warning Letter — Smoke Shop | 560942 Aug 2, 2018 |
| Warning Letter — Fillmore Quick Stop | 561085 Aug 2, 2018 |
| Warning Letter — Speedway | 560602 Jul 26, 2018 |
| Warning Letter — WALMART 4231 | 560637 Jul 26, 2018 |
| Warning Letter — Marathon / Deep Food Mart | 560601 Jul 26, 2018 |
| Warning Letter — Marathon / Food Center | 560632 Jul 26, 2018 |
| Warning Letter — Phillips 66 | 560633 Jul 26, 2018 |
| Warning Letter — BP / Noble Roman's | 560639 Jul 26, 2018 |