# Chalkline > The reference site for Australian residential building. Compliance, contracts, practical site work, materials, trades, WHS. Plain English with NCC and AS citations. Maintained by Dan, Chalkline (chalkline.com.au). Wiki content is licensed CC BY 4.0. Reviewed quarterly. ## Optional - [Glossary index](https://chalkline.com.au/glossary): 45 plain-language definitions across contracts, structural, services, compliance, wet areas, documentation - [Newsletter](https://chalkline.com.au/newsletter): weekly digest of new articles and NCC/AS updates - [RSS feed](https://chalkline.com.au/feed.xml)