Gated-execute on NIST SP 800-63B password rules, current revision

According to the current revision, SP 800-63B-4, section 3.1.1.2 ("Password Verifiers"), the requirements below apply. I opened the page at https://pages.nist.gov/800-63-4/sp800-63b.html and copied each quote from it.

• Single-factor minimum length: SHALL, 15 characters. Passwords used only as part of multi-factor authentication may be shorter, but must be at least 8 characters.
• Maximum length: SHOULD permit at least 64 characters.
• Composition rules: SHALL NOT impose them.
• Periodic change: SHALL NOT require it. Verifiers must force a change if there is evidence the authenticator has been compromised.
• Password hints: SHALL NOT permit a hint that an unauthenticated claimant can access.
• Security questions: SHALL NOT prompt for knowledge-based authentication or security questions when a password is chosen.
• Blocklist: SHALL compare the prospective password against a blocklist.
• Password managers: SHALL allow password managers and autofill.
• Salt length: SHALL be at least 32 bits.
• Hashing scheme: SHOULD use an approved scheme from the latest revision of SP 800-132. The text says "SHOULD be used", not SHALL. Passwords themselves SHALL be salted and hashed with "a suitable password hashing scheme".

The sources didn't conflict. The older Revision 3 appeared in search results, but I used only Revision 4.

{"answers":[
{"topic":"single-factor-minimum-length","keyword":"SHALL","value":"15","quote":"Verifiers and CSPs SHALL require passwords that are used as a single-factor authentication mechanism to be a minimum of 15 characters in length.","url":"https://pages.nist.gov/800-63-4/sp800-63b.html"},
{"topic":"maximum-length","keyword":"SHOULD","value":"64","quote":"Verifiers and CSPs SHOULD permit a maximum password length of at least 64 characters.","url":"https://pages.nist.gov/800-63-4/sp800-63b.html"},
{"topic":"composition-rules","keyword":"SHALL NOT","value":null,"quote":"Verifiers and CSPs SHALL NOT impose other composition rules (e.g., requiring mixtures of different character types) for passwords.","url":"https://pages.nist.gov/800-63-4/sp800-63b.html"},
{"topic":"periodic-change","keyword":"SHALL NOT","value":null,"quote":"Verifiers and CSPs SHALL NOT require subscribers to change passwords periodically.","url":"https://pages.nist.gov/800-63-4/sp800-63b.html"},
{"topic":"password-hints","keyword":"SHALL NOT","value":null,"quote":"Verifiers and CSPs SHALL NOT permit the subscriber to store a hint (e.g., a reminder of how the password was created) that is accessible to an unauthenticated claimant.","url":"https://pages.nist.gov/800-63-4/sp800-63b.html"},
{"topic":"security-questions","keyword":"SHALL NOT","value":null,"quote":"Verifiers and CSPs SHALL NOT prompt subscribers to use knowledge-based authentication (KBA) (e.g., “What was the name of your first pet?”) or security questions when choosing passwords.","url":"https://pages.nist.gov/800-63-4/sp800-63b.html"},
{"topic":"blocklist","keyword":"SHALL","value":null,"quote":"When processing a request to establish or change a password, verifiers SHALL compare the prospective secret against a blocklist that contains known commonly used, expected, or compromised passwords.","url":"https://pages.nist.gov/800-63-4/sp800-63b.html"},
{"topic":"password-managers","keyword":"SHALL","value":null,"quote":"Verifiers SHALL allow the use of password managers and autofill functionality.","url":"https://pages.nist.gov/800-63-4/sp800-63b.html"},
{"topic":"salt-length","keyword":"SHALL","value":"32","quote":"The salt SHALL be at least 32 bits in length and chosen to minimize salt value collisions among stored hashes (i.e., to prevent multiple subscriber accounts from having the same hashed password).","url":"https://pages.nist.gov/800-63-4/sp800-63b.html"},
{"topic":"hashing-scheme","keyword":"SHOULD","value":null,"quote":"An approved password hashing scheme published in the latest revision of [SP800-132] or updated NIST guidelines on password hashing schemes SHOULD be used.","url":"https://pages.nist.gov/800-63-4/sp800-63b.html"}
]}