AML stands for "Anti Money Laundering" and refers to measures that serve to combat money laundering. AML is used to describe anti-money laundering measures, laws (Anti Money Laundering Act = AMLA) and ordinances (Anti Money Laundering Ordinance).
These measures aim to combat and prevent money laundering and terrorist financing. Because AML can only be effective internationally and thus across national borders, the FATF (Financial Action Task Force) develops standards and recommendations that numerous countries follow. Switzerland, too, largely complies with the FATF's international recommendations through its legislation.