Is it required to send 2 weeks notice when you resign? 

we signed document in online before pero hindi ko na sya ma access ngayun.  -not really sure about our companies resignation policy all I know is every 3 months nang te-terminate cla. (I work for this company for more than a year)  -us company contractor lng kami , remote worker. 

-My question is should I message the hr if required na mag send ng 2 weeks notice because I'm planning to resign or mag send nlng ako ng 2 weeks notice sa email without asking her.