Contact Us
See an incorrect tariff rate in our HTS data, have a question about how we organize trade classification chapters, or want to suggest improvements to our tariff line search? We strive for accuracy and welcome your input.
The fastest way to reach us is by email: hello@plaintariff.com
Data Corrections
If you believe any data displayed on PlainTariff is inaccurate, please email us with the specific page URL and the correction. We source our data from publicly available government and institutional datasets and update regularly.
Send Us a Message
Use the form below to reach the editorial team. Your message routes to hello@plaintariff.com.
What to Contact Us About
We read every message sent to PlainTariff. The inbox sees a wide mix of traffic, and sorting mail correctly helps us respond faster. Good reasons to get in touch include: reporting a factual error in a specific record, asking how a metric is calculated, suggesting a new dataset or view we should add, letting us know a page is broken or slow, submitting a partnership or media proposal, or requesting quote permission for a news article. Researchers studying import-tariffs are especially welcome to reach out about data-source questions, methodology clarifications, or academic collaborations.
Response Time
Our editorial team is small but attentive. We aim to respond to data-correction reports and straightforward questions within 72 hours on business days. Partnership inquiries, media requests, and longer research exchanges may take up to one week during busy periods. If your message is time-sensitive, a legal matter, a security concern, or a press deadline, please say so in the subject line and we will prioritize it accordingly.
Editorial Corrections Process
When you report a factual error, please include (a) the exact URL of the affected page, (b) the field or sentence you believe is wrong, (c) what the correct value should be, and (d) a link or citation to the official source. For data that originates from a government agency, we will usually need to wait for the next upstream refresh to correct the underlying record, but we can often annotate the page with a correction notice in the meantime. We do not remove accurate information just because it is unflattering; we will consider removal requests only where the information is materially inaccurate, outdated past its retention horizon, or subject to a legal right under applicable law.
Privacy and Legal Requests
For privacy-related requests (access, deletion, opt-out), please use privacy@plaintariff.com - see our Privacy Policy for the full list of rights. For subpoenas, DMCA notices, or other formal legal correspondence, use legal@plaintariff.com. Routing legal mail to the general inbox can delay our response; please use the dedicated addresses when the situation calls for them.
About PlainTariff
PlainTariff is an independent editorial operation that builds plain-language reference sites around public data. We compile and verify public datasets and do not accept payment from the entities we cover. For corrections, data questions, or anything about our methodology, the inbox above is the fastest way to reach the team.
Who Publishes This
PlainTariff is operated by Kiznis Studio, an independent data-engineering studio (solo-operated). Questions, corrections, and accountability inquiries can be sent to hello@plaintariff.com.