§ 400.20 Waiting period in connection with the sale or transfer of a

rifle or shotgun.

When a national instant criminal background check is required pursuant
to state or federal law to be conducted through the National Instant
Criminal Background Check System (NICS) or its successor in connection
with the sale or transfer of a rifle or shotgun to any person, before
delivering a rifle or shotgun to such person, either (a) NICS has issued
a "proceed" response to the seller or transferor, or (b) thirty calendar
days shall have elapsed since the date the seller or transferor
contacted NICS to initiate a national instant criminal background check
and NICS has not notified the seller or transferor that the transfer of
the rifle or shotgun to such person should be denied.