Curious about how long does the entry waiver process take? US Entry Waiver Services provides expert lawyers advice to help you get a US entry waiver. The process can take anything from several months to a year according to the accuracy of your application and the facts of the case. US entry waivers are valid for up to 5 years and allow temporary access into the United States. Our knowledgeable lawyers staff reduces the application process making sure that all requirements are met to avoid delays.