1. You should be ok to travel on AP, but I am not sure if you won't have any problem when you come back using AP and want to work on h1. (I think if you use AP it will invalidate h1 or any non-immigrant status, it will change your status to adjustee)
2. If you have any valid non-immigrant visa (like h1) you don't need to use AP (again to have AP and to use AP is totally two different thing)
http://www.ins.gov/graphics/howdoi/travdoc.htm
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What is a travel document and who needs one?
If you are not a U.S. citizen, you may need permission to return to the United States after traveling abroad. This permission is granted through a travel document. Travel documents are also given to people who want to travel, but cannot get a passport from their country of nationality. You should apply for one of the following travel documents before you leave the United States:
Advance Parole: If you have applied for immigration benefits, you may need Advance Parole to be able to return to the United States if you travel abroad. It may be sought by, but not limited to, asylum applicants, parolees, people with Temporary Protected Status (TPS), and people who are applying to Adjust to Permanent Resident Status. Advance Parole may be given at the discretion of the District Director or the Service Center Director having jurisdiction over your place of residence. If you do not apply for Advance Parole before you leave the country, you will abandon your application with the INS and you may not be permitted to return to the United States.
(Please note: This requirement does not apply to people who have applied to adjust to permanent resident status and are maintaining H-1 status (temporary workers in specialty occupations) or L-1 status (intra-company transferees), or their dependents in H-4 or L-2 status.)
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3. I think it will.
Visit
www.immihelp.com and go to I-485 (here is text)
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Getting an EAD and using an EAD are two entirely different things. Using an EAD means working based on that EAD and that means when you join any company, signing I-9 form in which employment eligibility is based on EAD. The person can change from H1 status to EAD status by contacting their HR department and filling I-9 form again based on EAD.
Similarly, getting an AP and using an AP are two entirely different things. Using an AP means going out of US and showing AP to enter the US as a parolee instead of showing the visa to enter the US as a non-immigrant. As parolee can't work in US, he/she should get EAD before traveling on AP. Receiving AP is just addition of one more document in your file.
So just receiving EAD/AP does not change the non-immigrant status in any way and he/she is still on H or L status. Thus the person is either in EAD/AP status or in H/L status.
As long as the person maintains the H/L status(H/L status not expired and H1/L1 holders not working for any other employer other than sponsoring employer and H4/L2 holders not working at all), he/she can travel outside US and come back with out the need for advanced parole even after applying for adjustment of status. The person can enter using his/her non-expired H/L visa. The person needs to carry his/her "original" I-485 receipt otherwise serious delay at the airport may be caused. For valid H/L visa holders, there is no need to apply for EAD to continue working after coming back to US. This rule is effective July 1, 1999.
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I would suggest keep AP with you but travel using H1 approval.
I hope this will help.
JB
Originally posted by puneet_gcard
Thanks Sahin. I am from India.
1) The thing is that my lawyer insists that I should be OK on Advance Parole.
2) But he says I DO need an Advance Parole to go to Canada even if i am going for less than 30 days during I-485.
3) But this should not invalidate my H1-B status at all and I can come back and continue to work on H1 B.
So hopefully things should be OK. But all the responses from you as well as other gurus is deeply appreciated !!!!!