Technical Support Online Forms | Legal Guides | Tech Support United States Import Tariffs back to Technical Support Below we are providing a link to the United States Customs and Border Protection. This will assist you in determining the proper Harmonized System Classification numbers for your products and any duty applications. We would like to stress that it is always best to consult a professional when trying to determine applicable classification and duty costs. There are many other regulations which may apply to your particular goods such as origin, import restrictions, permit requirements, quotas etc. to name a few. The application of a tariff also requires knowledge provided by other source materials such as Explanatory Notes, Customs Act, Customs Tariff Act, etc. Because of these factors it is always advisable to treat these internet sights as a guideline only. Please avail yourself of our expertise and feel free to contact our consulting department for any technical support. Roxanne Varosky, our Manager, Customs Systems & Services would be happy to assist you in this regard. You can locate her phone, fax and e-mail address on our personnel page in this sight. United States Tariffs