Where the management provides both master meter and submeter service of utilities to a homeowner, for each billing period the cost of the charges for the period shall be separately stated along with the opening and closing readings for his or her meter. The management shall post in a conspicuous place, the prevailing residential utilities rate schedule as published by the serving utility.
Source:
Section 800.48, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=CIV§ionNum=800.48..