HTS heading 8419
271 exclusion requests, from 71 distinct filers, across the 2018–20 tranches.
271
requests filed
68
granted
25.1% (95% CI 20.3–30.6%, n=271)
grant rate, all filers
Cross-tranche — see caution below
24.6% (95% CI 19.8–30.2%, n=264)
excluding mass filers
264 requests
By tranche
| Tranche | Requests | Granted | Denied | Grant rate |
|---|---|---|---|---|
| List 1 | 203 | 58 | 145 | 28.6% (95% CI 22.8–35.1%, n=203) |
| List 2 | 47 | 10 | 37 | 21.3% (95% CI 12–34.9%, n=47) |
| List 4A | 21 | 0 | 21 | 0% (95% CI 0–15.5%, n=21) |
The cross-tranche rate above blends processes. Where this heading appears in more than one tranche, use the per-tranche rows. Where a rate reads “n too small”, fewer than 20 requests were decided and no rate is published for it.
Products filed under this heading
Product titles as they appear on the public docket, unedited. These are examples, not a complete list, and their presence here says nothing about their outcome.
- instantaneous gas water heater
- air floatation dryer
- heat exchanger
- borosilicate glass
- aluminum air duct adapter
- plate heat exchanger
- heat exchanger casting
- aluminum heat exchanger, cooler, aftercooler