INGAA, Crossing, II-G ____ is the plan devised between the Owner and Crossing Party to specify the details and provisions under which the crossing construction shall occur.

The question asks to identify the document or plan that is devised between the Owner (of an existing facility) and the Crossing Party (proposing a new facility) to specify the details and provisions for crossing construction, referencing INGAA, Crossing, II-G.

• a. Crossing Plan: This term directly refers to a detailed plan specifically for a pipeline crossing, which would naturally include all the necessary details and provisions for its construction, agreed upon by both parties.
• b. Alignment Sheet: An alignment sheet is a drawing that shows the horizontal and vertical layout of a pipeline, including geographical features and other utilities. While crucial for design, it is a drawing, not the overarching plan or agreement specifying construction provisions between two parties.
• c. ROW Agreement: A Right-of-Way (ROW) Agreement is a legal document granting permission to use land for a pipeline. It deals with land rights, not the specific construction methodology and provisions for a crossing between two facility owners.
• d. Plat: A plat is a map, often used in land surveying, showing property boundaries and features. Similar to an alignment sheet, it's a graphical representation, not the detailed construction plan or agreement.

INGAA (Interstate Natural Gas Association of America) guidelines for pipeline crossings (e.g., in their "Recommended Practices") emphasize the need for a comprehensive plan agreed upon by all involved parties. This plan details the engineering, safety measures, construction methods, and operational considerations for the crossing. The term "Crossing Plan" accurately describes this document.

The term that best fits the description of a plan devised between the Owner and Crossing Party to specify the details and provisions for crossing construction is a "Crossing Plan."

The correct option is a).

a) Crossing Plan