Regulation of Lobbying Letter from SIPO Posted on May 26, 2015July 14, 2021 by Irish Planning Institute Standards in Public Office Commission letter to representative bodies on lobbying legislation and quick guide to the legislation.This content is restricted to IPI Members. Please log in first to access this page. New users may apply by visiting the membership application page here. You can find out more about IPI membership by clicking here. Please contact [email protected] if you have any difficulties logging in. Existing Users Log InUsername or EmailPassword Remember Me Forgot password? Click here to reset