Complex sentence: The Institution was founded in 1945 and is an independent, not-for-profit organisation that sets professional standards, supports and develops members and provides authoritative advice and guidance on health and safety issues.
Split into simpler sentences: The Institution was founded in 1945 and is an independent, not-for-profit organisation. As well as setting professional standards, the Institution supports and develops members and provides authoritative advice and guidance on health and safety issues.