| Warning Letter — Vape N' Cigs | 524043 May 4, 2017 |
| Warning Letter — Penny Lane | 523794 May 4, 2017 |
| Warning Letter — Ogden Convenient Food & Liquor | 524165 May 4, 2017 |
| Warning Letter — Walgreens | 524130 May 4, 2017 |
| Warning Letter — Cigarettes Cheaper! | 523795 May 4, 2017 |
| Warning Letter — Shriver III, Victor L., A.K.A. Chip | 513435 Apr 28, 2017 |
| Warning Letter — 203 Food Mart/BP | 523379 Apr 27, 2017 |
| Warning Letter — Caseyville Mini Mart/Gulf | 523373 Apr 27, 2017 |
| Warning Letter — Quick Stop 2 | 523407 Apr 27, 2017 |
| Warning Letter — Circle K / Marathon | 523525 Apr 27, 2017 |
| Warning Letter — Nest Bar & Grill/Bolingbrook Golf Club | 523579 Apr 27, 2017 |
| Warning Letter — BP | 523377 Apr 27, 2017 |
| Warning Letter — Circle K | 523263 Apr 27, 2017 |
| Warning Letter — La Tiendita Mexican Grocery Store | 523264 Apr 27, 2017 |
| Warning Letter — Gas Mart | 523432 Apr 27, 2017 |
| Warning Letter — Quick Shop/Exxon | 523655 Apr 27, 2017 |
| Warning Letter — El Ranchito | 523455 Apr 27, 2017 |
| Warning Letter — Dollar General | 523374 Apr 27, 2017 |
| Warning Letter — Circle K | 523406 Apr 27, 2017 |
| Warning Letter — Casey's General Store | 523600 Apr 27, 2017 |
| Warning Letter — Mandy's | 523551 Apr 27, 2017 |
| Warning Letter — Organ Recovery Systems, Inc. | 519572 Apr 20, 2017 |
| Warning Letter — Dollar General | 522945 Apr 20, 2017 |
| Warning Letter — Casey's General Store | 523125 Apr 20, 2017 |
| Warning Letter — Schnucks | 522946 Apr 20, 2017 |
| Warning Letter — Sav-On Liquor & Wine/Phillips 66 | 523008 Apr 20, 2017 |
| Warning Letter — Dollar General | 523009 Apr 20, 2017 |
| Warning Letter — The Vaporosity Shop | 523007 Apr 20, 2017 |
| Warning Letter — Oxygen Health Systems, LLC | 513217 Apr 17, 2017 |
| Warning Letter — The Vitamin C Foundation | 514071 Apr 17, 2017 |
| Warning Letter — Friendly Food & Liquor | 522591 Apr 13, 2017 |
| Warning Letter — La Huerta Super Mercado | 522288 Apr 13, 2017 |
| Warning Letter — Cigarette Depot | 522148 Apr 13, 2017 |
| Warning Letter — Border Tobacco & Vapes | 522588 Apr 13, 2017 |
| Warning Letter — Jewel Osco | 522150 Apr 13, 2017 |
| Warning Letter — Dollar General | 522149 Apr 13, 2017 |
| Warning Letter — Family Pantry | 522147 Apr 13, 2017 |
| Warning Letter — Dollar Island Plus | 522170 Apr 13, 2017 |
| Warning Letter — Mario Liquor's | 522289 Apr 13, 2017 |
| Warning Letter — CIRCLE K/MARATHON | 522287 Apr 13, 2017 |
| Warning Letter — BP | 522589 Apr 13, 2017 |
| Warning Letter — Shell/Food Mart | 522590 Apr 13, 2017 |
| Warning Letter — Minit Mart/BP | 521790 Apr 6, 2017 |
| Warning Letter — Spirits | 521895 Apr 6, 2017 |
| Warning Letter — Sinbad Vapors | 521795 Apr 6, 2017 |
| Warning Letter — Walgreens | 521866 Apr 6, 2017 |
| Warning Letter — Vape Smoke Shop | 521787 Apr 6, 2017 |
| Warning Letter — Pantry Plus | 521830 Apr 6, 2017 |
| Warning Letter — Shell | 521713 Apr 6, 2017 |
| Warning Letter — Express Lane/Shell | 521792 Apr 6, 2017 |