Seoul's Clean Construction System (CCS), which received the prestigious UN Public Service Award in 2013, is an example of how efficiency, public accountability and transparency of public construction management can be strengthened at the municipal level. This compilation of 'Frequently Asked Questions' is a supplement to 'Seoul's Clean Construction System for Efficient Public Adminsitration & Transparency of Construction Management: A Resource Book for Practitioners' and is based on lessons learned from UNDP Seoul Policy Centre's various knowledge sharing activities on CCS.