Declaration of personal interests by the Mayor's Office.
The Mayor of London is required to declare personal interests in the Standing Register of Interests. He/she must register these details with the GLA's Monitoring Officer within 28 days of the commencement of his/her term of office, and must submit an updated notification within 28 days of becoming aware of any change.
The Mayor has stated that the Register of Interests for Mayoral appointments will also be published in his promotion of openness and transparency.
Relevant link: https://www.london.gov.uk/about-us/greater-london-authority-gla/good-governance/register-interests