This document compares the nomination process for the Chief Executive election in Hong Kong in 2012 and 2017. The 2012 process involved nomination by 1/8 of the Nomination Committee members, no screening stage, and election by the Election Committee. The 2017 process added a screening stage involving Legco members to narrow the candidates to 2-3, and requires over 50% Nomination Committee approval of the final list. It aims to find a process that offers choice, is acceptable to Beijing and Hong Kong, and meets international standards.