Bureau of Customs and Border Protection in Savannah, GA use this worksheet to process PEA / SIL. It is interesting to note the $500 border line. If the request for refund is less than $500, then Entry Specialist is working on it. If the request for refund is more than $500 or it is ADD/CVD / Quota / Special Program entry, then the request is sent into the realm of Import Specialist. Obvious conclusion is that refund requests that are over $500 are subject to extra scrutiny. Procedures for PEA / SIL are published on CBP website.
I always protested entries without revised 7501. However, CBP at port of Savannah GA require revised entry summary to be included with the entry packet. My argument for not including revised 7501 was that since protests are codified in 19 CFR 174.13 where no provision for revised entry summary is mentioned, no revision is required. 1703 is different. Recently I got a call from Newark entry specialist requesting the same thing. They, however, have teams that require and that don’t. All other ports don’t require revisions to the best of my knowledge.