(a) Consistent with the requirements of this Part, the visitation of a youth with a particular visitor may be denied, revoked or limited only when it is determined that such visitation would cause a threat to the safety, security or operational stability of the facility or the safety, security or health of the youth or be detrimental to the youth's treatment and rehabilitation program.

(b) Any determination to deny, revoke or limit a youth's visitation pursuant to this section shall be made by the director, or designee, in writing, and shall state the specific facts and reasons underlying such determination. A copy of this determination shall be given to any person affected by the determination.