Michigan Mental Health Code - Act 258 of 1974ACT to codify, revise, consolidate, and classify the laws relating to mental health; to prescribe the powers and duties of certain state and local agencies and officials and certain private agencies and individuals; to regulate certain agencies and facilities providing mental health or substance use disorder services; to provide for certain charges and fees; to establish civil admission procedures for individuals with mental illness, substance use disorder, or developmental disability; to establish guardianship procedures for individuals with developmental disability; to establish procedures regarding individuals with mental illness, substance use disorder, or developmental disability who are in the criminal justice system; to provide for penalties and remedies; and to repeal acts and parts of acts.