An act to amend Sections 19980, 19981, 19991, 19991.2, 19991.3, 19992, 19993, 19995, and 19997 of, to add Section 19970.5 to, to repeal Sections 19975.1 and 19991.1 of, and to repeal and add Section 19975 of, Section 19980 the Health and Safety Code, relating to housing.