GRL_START = "GRL.001"
GRL_ALLOW = "GRL.002"
GRL_SANITIZE = "GRL.003"
GRL_BLOCK = "GRL.004"
GRL_RETRY = "GRL.005"
GRL_HANDOVER = "GRL.006"
GRL_OBSERVE = "GRL.007"
GRL_FAIL_CLOSED = "GRL.008"
GRL_FINAL = "GRL.009"
