What laws apply for money laundering and terror financing and where can I find them?

The fourth Money Laundering directive contains regulations to combat money laundering and terror financing in the EU: 

https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex%3A32015L0849

The directive is implementet in Norway through the updated Money Laundering Act effective from 15.10.2018: 

https://www.regjeringen.no/no/dokumenter/prop.-40-l-20172018/id2589604/sec15#ch16 

The subject is still changing and more adjustments can be expected in the coming years.