| 87% | ERROR | 5 | With 24 Across, quality control concern |
| 61% | TRAFFICPATTERNS | 15 | Control tower concerns |
| 61% | INSPECTION | 10 | Quality control procedure |
| 59% | STDS | 4 | Quality control guidelines: Abbr. |
| 58% | BRAEXAMINATION | 14 | Quality control job at Chantelle? |
| 57% | HOTDOGBONE | 10 | Quality control problem at Oscar Mayer? |
| 55% | PROBINGCHERRIES | 15 | Quality control job at a maraschino factory? |
| 54% | PLANE | 5 | Control tower concern |
| 54% | STANCE | 6 | Controlled ___ (DEA concern) |
| 51% | PEST | 4 | ___ control (exterminator's concern) |
| 51% | SMOG | 4 | Air quality concern |
| 49% | ABSORBENTMINDED | 15 | Concerned with the quality of paper towels? |
| 49% | EPA | 3 | Org. concerned with water quality |
| 49% | EPA | 3 | Org. concerned with air quality |
| 47% | EPA | 3 | Organization concerned with air quality: Abbr. |
| 47% | EPA | 3 | Agency concerned with air quality (Abbr.) |
| 47% | EPA | 3 | Group concerned with air quality: Abbr. |
| 47% | EPA | 3 | Federal dept. concerned with air quality |
| 47% | TRAPATOYOTAPART | 15 | What the quality control chief did at the Japanese auto plant? |
| 46% | EPA | 3 | Federal organization concerned with air quality: Abbr. |
| 46% | EPA | 3 | Government group concerned with air quality: Abbr. |
| 46% | EPA | 3 | Federal department concerned with air quality (Abbr.) |
| 46% | EPA | 3 | Government group concerned with air quality (Abbr.) |
| 46% | EPA | 3 | Government agency concerned with air quality: Abbr. |
| 46% | EPA | 3 | Govt. group concerned with air quality (Abbr.) |
| 45% | UFOS | 4 | Sightings of concern in JFK's control tower |
| 43% | EPA | 3 | Government group concerned with the air quality index: Abbr. |
| 41% | SPOTCHECK | 9 | *Random quality-control measure |
| 40% | PACKRATER | 9 | Quality-control inspector at a knapsack factory? |
| 33% | TYPOS | 5 | Editor's concerns |