Where can I find the requirements to be a flight line marshaller?

For Flight Line Marshaller (FLM) requirements see  My Operations Qualifications under eServices. Also refer to Para 2-3 of CAPR 60-3.

The following link will take you to the SQTRs in Ops Quals.  The SQTR outlines all the training requirements for FLM: Flight Line Marshaller SQTR