An LPS conservatorship is a specialized mental-health conservatorship governed by the Lanterman-Petris-Short Act rather than the traditional probate conservatorship process. It may be established for a person who is found to be “gravely disabled” as a result of a qualifying mental-health disorder or severe substance-use disorder and who is unable to provide for basic personal needs as defined by California law. LPS proceedings generally arise through the county’s behavioral-health system, involve additional procedural and civil-rights protections, and ordinarily last for no more than one year unless renewed by the court. Because an LPS conservatorship may authorize involuntary treatment or placement, it is distinct from both a general probate conservatorship and a limited conservatorship.