http://www.legislation.gov.uk/ukpga/2005/9/section/39/notesIncapacityLegislationMedical and psychiatric treatmentCivil and human rightsLawExplanatory Notes to Mental Capacity Act 2005Department for Constitutional AffairsKing's Printer of Acts of Parliament2020-04-20 9 7 April 2005 121 This section applies to long-stay accommodation (8 weeks or more) arranged by a local authority or a change in such accommodation. It applies to residential accommodation provided in accordance withsection 21 or 29 of the National Assistance Act 1948. This may be accommodation in a care home, nursing home, ordinary and sheltered housing, housing association or other registered social housing, or in private sector housing provided by a local authority or in hostel accommodation. The IMCA safeguard will also apply to people accommodated following discharge under section 117 of the Mental Health Act 1983. 122 The IMCA is to be instructed where a person lacks capacity to agree to the arrangements and there is no other person to discuss it with. Again the role of the IMCA is both to support and to represent the person concerned. Any information or submissions from the IMCA must be taken into account by the local authority. 123 Subsection (3) provides that the IMCA does not need to be instructed where the person is to be required under the Mental Health Act 1983 to live in the accommodation in question (for example, as a requirement of conditional discharge).Subsection (4) makes provision in relation to urgent placements. 124 Subsection (5) is intended to ensure that an IMCA is involved in relation to people whose residence is initially intended to be less than 8 weeks if the period is later extended.