回复：回复：回复：CPT AND OPT 请教

So am I correct "记得曾是CPT和OPT加起来只能一年"?
-I just checked some information and found that your statement is incorrect. You can do up to 364 days of CPT without affecting your eligibility for OPT (Optional Practical Training.) However, if you do 365 days or more of CPT, you will lose your eligibility for OPT.

In a simple words, your CPT will not affect your OPT as long as you work less than one year for CPT.
Also, CPT is aaproved by the International Student Office at your school, not USCIS. This is different from OPT which is approved by USCIS.

See this website: http://www.highline.edu/stuserv/international/thunderworld/optCpt.htm