46 C.F.R. § 154.550 Excess flow valve: Bypass.
Title 46 - Shipping
If the excess flow valve allowed under §154.532(b) has a bypass, the bypass must be of 1.0 mm (0.0394 in.) or less in diameter.
Title 46: Shipping
PART 154—SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES
Subpart C—Design, Construction and Equipment
Cargo and Process Piping Systems
§ 154.550 Excess flow valve: Bypass.

