JOINT INDUSTRY–GOVERNMENT GUIDELINES FOR THE CONTROL OF OIL TANKERS AND BULK CHEMICAL CARRIERS IN ICE CONTROL ZONES OF EASTERN CANADA
TP 15163
https://www.tc.gc.ca/eng/marinesafety/tp-tp15163-menu-4025.htm
Ice Control Zones
“V” - Not Active
“V 1”- Active (as of 19 February, 2021)
“T” - Active (as of 25 February, 2021)
“Z” - Not Active
“Y” - Not Active
“X” - Not Active
“X 1”- Not Active
“W” - Not Active
“U” - Partially Active - Active North of 49N and West of 51W (as of 22 March, 2021)
Strait of Belle Isle is not recommended for shipping as of 27 February, 2021
Updated 22 March, 2021