I'm looking for a word or phrase that means "to sign something to acknowledge that you have read and understand a document".
Examples (where the blank is the word or phrase I'm looking for)
John has read the rules for our club. He needs to sign his name to acknowledge that he has reviewed and understands the rules.
John has read and __________ the rules.
My doctor provide me with a HIPPA statement and I had to ____________ that I received it.
The closest I've seen is "sign off". I don't like sign off in this case because it has many different meanings and could be misunderstood by non-native speakers. For example:
John signs off on the rules.
Could mean that he reviewed and agrees to the rules. It could also mean that he approved the rules. This is a different concept, since John has no say in the rules and isn't part of the body that made and approved the rules, he's just confirming his assent to them.
Is there a word or phrase that conveys signing that you have reviewed and agree to a document?