请问申请TN签证需要什么文件？
据说除了公司的TN letter外，需要我的学位的证书。由于我的学位是中国的，据说要一个evaluation，不知这个怎么做？
查看wes.org的网站，号称超复杂，
需要：
All graduation certificates issued by the institution attended
AND
All degree certificates issued by the institution attended
AND
Academic trans for all post-secondary programs of study
然后还要提交给中国的学位认证中心认证后再提交给WES。
To be sent directly to WES by the Ministry of Education. All documents must be verified by the Ministry of Education. Please contact the Ministry to verify documents.
China Academic Degree and Graduate Education Development Center
B18 NO.1 Tongfang Technology Square
Haidian, Beijing 100083
China
Tel: 8610-82379480
Fax: 8610-82379491
www.cdgdc.edu.cn
真的这么复杂吗？难道为了一个TN我还要回北京仅仅是为了给我的学历、学位证书和成绩单verify？
请教前辈，一切手续该如何办？