From NFVwiki

I would like to submit a NFV ISG POC proposal where can I find a Word version of the template?

You can find a link to the word version of the PoC Framework (including the templates) at:
NFV-PER002-PoC Framework - Word version  

Do all of the PoC team members have to be NFV ISG participants?

No, it is only required that (at least) one of the supporting Network Operators or Service Providers 
is member of the NFV ISG. See Section 4.5 of the PoC Framework:
“4.5 NFV ISG PoC Proposal Acceptance Criteria 
The criteria for acceptance of NFV ISG PoC Proposals are: 
2)	The organizations participating in an PoC Project shall include at least two Manufacturers and at
least one Network Operator or one Service Provider, where at least the one Network Operator or the one  
Service Provider shall be a member of the NFV ISG (refer clause A.1.1). “

Where do I send the completed NFV ISG PoC proposal?

Once your proposal completed, you need to:
1)	upload it to the ETSI portal as a regular contribution
2)	send an email to NFV_POC@LIST.ETSI.ORG with [NFV ISG PoC Proposal] in the subject line and a link to 
the uploaded contribution included in the body. To be able to post your email, you will need to subscribe
to that list if not already done. See section 4.3 of the PoC Framework:

“4.3 NFV ISG PoC Proposal Submission 
PoC Team formation is beyond the scope of the NFV ISG. The PoC Team shall prepare an NFV ISG PoC Proposal 
according to the NFV ISG PoC Proposal template in clause A.1. The PoC Proposal shall be submitted to the 
ISG as a contribution uploaded on the ETSI Portal and a link to the contribution shall be sent to the 
dedicated e-mail distribution list ‘NFV_POC@LIST.ETSI.ORG' with [NFV ISG PoC Proposal] in the subject