For the second part the (formerly known)
Nolan principles - The seven principles of public life may help.
And a FAQ that give background on the Standards Office -
www.public-standards.org.uk/FAQs.html
Acknowledging own limitations is to ask when we don't know something & recognising that when something is beyond our immediate experience, to know additional skills are needed - personally or from others. Uphold your own professionalism by contributing confidently to conversations & by openly inviting differing view points.
Hth
How are plans going with the assessment meeting ?