| 8531 | | Electric sound or visual signaling apparatus (for example, bells, sirens, indicator panels, burglar or fire alarms), other than those of heading 8512 or 8530; parts thereof: | | | | |
| 8531.10.00 | | Burglar or fire alarms and similar apparatus | | 1.3% | Free (A,AU,B,BH, C,CA,CL,E,IL,J, JO,MA,MX,P, SG) | 35% |
| 8531.10.00 | 15 | Smoke detectors: | | | | |
| 8531.10.00 | 15 | Battery powered | No. | | | |
| 8531.10.00 | 25 | Other | No. | | | |
| 8531.10.00 | 35 | Other: | | | | |
| 8531.10.00 | 35 | Burglar alarms | No. | | | |
| 8531.10.00 | 45 | Other | No. | | | |
| 8531.20.00 | | Indicator panels incorporating liquid crystal devices (LCD's) or light emitting diodes (LED's) | | Free | | 35% |
| 8531.20.00 | 20 | Incorporating LCD's | X | | | |
| 8531.20.00 | 40 | Other | X | | | |
| 8531.80.00 | | Other apparatus | | 1.3% | Free (A,AU,B,BH, C,CA,CL,E,IL,J, JO,MA,MX,P,SG) | 35% |
| 8531.80.00 | 10 | Indicator panels: | | | | |
| 8531.80.00 | 10 | Incorporating electric discharge (fluorescent) devices | X | | | |
| 8531.80.00 | 25 | Other | X | | | |
| 8531.80.00 | 30 | Horns | X | | | |
| 8531.80.00 | 40 | Other sound signaling apparatus | X | | | |
| 8531.80.00 | 50 | Other | X | | | |
| 8531.90 | | Parts: | | | | |
| 8531.90.15 | 00 | Printed circuit assemblies: | | | | |
| 8531.90.15 | 00 | Of the panels of subheading 8531.20 | X | Free | | 35% |
| 8531.90.30 | 00 | Other | X | 1.3% | Free (A,AU,B,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 35% |
| 8531.90.75 | 00 | Other: | | | | |
| 8531.90.75 | 00 | Of the panels of subheading 8531.20 | X | Free | | 35% |
| 8531.90.90 | 00 | Other | X | 1.3% | Free (A,AU,B,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 35% |
Harmonized Tariff Schedule of the United States inquiry: 534
