 Right. So every third year means you're not unduly burdened by an assessment process year after year after year. But it also runs the risk that you might forget, you know, if staff turns over, what's this thing? We did this three years ago. Right. Yeah. And you certainly don't want to forget because it is a go no go. If you don't have that assessment, you and the clauses in your contract and it's required, you can't perform the work.