I normally work on private projects where subcontractors provide lien waivers with their monthly payment applications. I am working on a federal project and my understanding of the Miller Act is that there is no "lien waiver" but rather "bond claims". Is there any monthly documentation (similar to a lien waiver on private projects) that subcontractors need to provide monthly on federal projects? Or is the process just that they file a "bond claim" whenever they are not paid?