TN Renewal by Mail for another 3 years but pass port is valid till next 1 year

bhalderia

Registered Users (C)
Is it possible to re-new TN and TD ( for same employer) by mail for another 3 year but all applicant candian passport is getting expiring in next 1 year. OR Did all applicant should have valid passport for 3 years ?
What is process of renew TN by mail ?
Please advice
 
When you renew by mail, passport validity is unimportant for I-94 expiry: you get what you asked for upto 3 years.
Only border petitions I-94s are limited to passport expiry (although once passport is renewed, the remaining time will be granted on a new I-94, without any extra fee). Border used to not care, but now they do (with no good reason, really).
 
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