Question 68 ONC03 - Master LT 500-1600 GRT

The Correct Answer is A. **Explanation for Option A (CFR Load Line Regulations):** The primary regulations governing the safe stowage, lashing, and securing of timber deck cargoes, particularly concerning stability, freeboard, and load line marks on U.S.-flagged vessels (or vessels operating under U.S. jurisdiction), are found in the **Code of Federal Regulations (CFR)**, specifically Title 46 (Shipping), which includes the **Load Line Regulations**. These regulations detail the standards necessary to maintain seaworthiness and stability when carrying such demanding cargo, including provisions for cargo securing devices, height limits, and the impact of the cargo on the assigned load line. **Explanation of Incorrect Options:** * **B) vessel's classification society rules and regulations:** Classification societies (like ABS, Lloyd's Register) issue rules primarily focused on structural integrity, machinery, and survey requirements. While they may have general cargo securing guidelines, the mandatory, legally binding regulations concerning load lines and timber deck cargo safety (especially concerning regulatory compliance and statutory certification) are enforced by the national administration, detailed in the CFR Load Line Regulations. * **C) International Cargo Bureau Regulations:** There is no single universally recognized entity named the "International Cargo Bureau" that issues mandatory, binding regulations of this nature. International standards for cargo securing are generally found in the IMO's Code of Safe Practice for Cargo Stowage and Securing (CSS Code), but the specific national implementation and freeboard requirements referenced in the question are codified in the CFR Load Line Regulations. * **D) Rules and Regulations for Cargo and Miscellaneous Vessels:** This is a broad, generic title. While specific regulations are contained within documents bearing similar names, the most precise and authoritative source for the regulations governing load line allowances and the securing of timber deck cargoes in the US regulatory framework is explicitly the CFR Load Line Regulations (46 CFR Subchapter E).