Commentary Part 1 – Amendments to Mental Health Act 1983 Overview Section 18: Approved mental health professionals
64.Section 18 substitutes section 114 of the 1983 Act. It replaces the role of ASWs with that of AMHPs. This will mean that a wider group of professionals, such as nurses, occupational therapists and chartered psychologists will be able to carry out the ASW's functions as long as individuals have the right skills, experience and training, and are approved by an LSSA to do so. A registered medical practitioner is specifically prohibited from being approved to act as an AMHP. This means that there will be a mix of professional perspectives at the point in time when a decision is being made regarding a patient's detention. This does not prevent all those involved from being employed by the NHS, but the skills and training required of AMHPs aim to ensure that they provide an independent social perspective.
65.The definition of an ASW in section 145(1) of the 1983 Act is replaced by the definition of an AMHP in section 114 (see paragraph 11 of Schedule 2). Unlike with ASWs, there is now no requirement that an AMHP be an officer (employee) of an LSSA.
66.LSSAs will approve AMHPs. Before doing so they must be satisfied that the individual has appropriate competence in dealing with persons who are suffering from mental disorder and complies with regulations setting out conditions for approval, factors as to competency, and  requirements for training.
67.There will be separate regulations for England and Wales, which may contain different approval criteria. Therefore, an AMHP approved by an LSSA in England may only act on behalf of an English LSSA, and an AMHP approved by a Welsh LSSA may only act on behalf of a Welsh LSSA. This means a Welsh LSSA cannot arrange for an English-approved AMHP to act on their behalf and vice versa. However, it does not mean that a Welsh-approved AMHP cannot make an application to admit a patient in England or convey a patient in England and vice versa. It is also possible for an AMHP with the appropriate competencies to be approved in both territories.