Hi,
1.if the transcripts were issued by university in a sealed envelope (with seal across the back flap) you can send the same...idea is that WES should receive the transcripts not tampered by the candidate...so,if the sealed envelope issued by university containing the transcripts doesn't appear to be opened it should be fine.
2.There's WES academic records request form downloadable from WES website...you will have to fill in few details and the university the balance portion...that also is supposed to be inside the envelope. However I've read in the forum someone mentioning without WES ARF ,his ECA got done.
3.Degree Certificate copy need to be sent alongwith the sealed envelope...so both the sealed envelope & degree certificate copy can be together put in an envelope and sent to WES
4.Ensure you write the WES reference number on the envelope..you will get the reference number once you make the payment of the fees at the website.
So,if you want to take a chance with not including you WES ARF,you just need to take a copy of ur degree certificate & put it alongwith the transcripts and send to WES a quoting reference number.
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but I'd suggest, getting it with WES ARF too,if getting Transcript from ur University isn't so time taking... because it took WES 8 days to acknowledge the receipt of my courier (after courier delivered it) ...then it was 'document under review' for 6-7 days...then only status changed to 'evaluation under process'...so,even if they reject it for lack of WES ARF you'll come to know after 20days only (counting the courier time)...and you'll have to go through it again...