Tanker Familiarization Environmental Regulations and Compliance 3

Question 1

What is the primary purpose of an Inert Gas System (IGS) on a tanker from an environmental and safety perspective?

Accepted Answer

To prevent explosive atmospheres and reduce vapor emissions

Answer

An IGS maintains oxygen levels below the flammable range in cargo tanks, preventing explosions and reducing hydrocarbon vapor releases to the atmosphere.

Question 2

Cargo residue from a Category X noxious liquid substance (NLS) must be handled how before a tanker can load a new cargo?

Accepted Answer

Discharged only to a port reception facility before washing

Answer

Category X NLS cargo residues are the most hazardous and must be discharged to a port reception facility before any tank washing takes place.

Question 3

Which international convention establishes the framework for compensating victims of oil pollution damage caused by tankers?

Accepted Answer

The Civil Liability Convention (CLC)

Answer

The Civil Liability Convention (CLC) establishes strict liability for shipowners and provides compensation for oil pollution damage caused by tankers.

Question 4

Under OPA 90, which party bears strict liability for oil spill cleanup costs and damages when a vessel discharges oil into U.S. navigable waters?

Accepted Answer

The responsible party, typically the vessel owner or operator

Answer

OPA 90 imposes strict liability on the 'responsible party' — usually the vessel owner or operator — for removal costs and damages from oil discharges.

Question 5

What is the significance of the 'precautionary area' designation in ballast water management for tankers entering U.S. waters?

Accepted Answer

Ballast water must be exchanged or treated before entering U.S. waters to prevent invasive species

Answer

U.S. regulations require tankers to conduct open-ocean ballast water exchange or use approved treatment systems to prevent invasive species from being introduced into U.S. waters.

Tanker Familiarization Practice Test

Tanker Familiarization Practice Test

Tanker Familiarization Environmental Regulations and Compliance 3