111.570—Under this subpart O, what records must you make and keep?
(a)
You must make and keep the records required under this subpart O in accordance with subpart P of this part.
(i)
The person who performs the requirements of this subpart must document, at the time of performance, that the requirement was performed.
(C)
The date the complaint was received and the name, address, or telephone number of the complainant, if available;