Is there a time limit after which NCIC records are automatically deleted?

NCIC records do not expire automatically based on time alone. Arrest records typically remain until the subject reaches age 99, unless the originating agency submits a deletion request. Warrant entries persist until the warrant is recalled, executed, or quashed by a court. Some records may be purged if the underlying case is dismissed or expunged under state law, but this requires affirmative action — the responsible agency must update the FBI. Passive waiting is not a viable strategy for record removal.