TN 签证身份针对的是加拿大和墨西哥的专业人员。这类签证与 H-1B 相似，只是对持有此类签证身份的人没有时间限制。持此类签证者一般可以在美国驻留一年的时间。这种签证要求持有人至少有学士学位或同等学历以上的学位。持此类签证者的陪同配偶及未成年儿童领取的是 TD 签证，且无权在美国进行工作。

Non-Canadian or Non-Mexican family members of TN status
holders are entitled to TD visas, which can be issued in
non-Canadian or non-Mexican passports. However, only the
Canadian and Mexican reciprocity schedules in Appendix C
provide data for TN and TD visas. Therefore, the number
of entries, fees and validity for non-Canadian or non-
Mexican Family members of a TN status holder seeking TD
visas should be based on the reciprocity schedule of the
TN principal alien. For example, a Chinese national
married to a Canadian would be issued a TD visa in his
and/or her Chinese passport based on the Canadian
reciprocity schedule. In this case the applicant would be
the recipient of a visa valid for multiple entries, no
fee. However, a Mexican married to a Canadian would be
issued a TD visa in his and/or her Mexican passport valid
for multiple entries with a fee of $100.00 based on the
Mexican reciprocity schedule.