L1-COR-01
Atwood Rope MFG
Atwood 550 Paracord (30 m)
Seven-strand 550 cord. Thirty metres covers a tarp rig with enough left for repairs and the knot practice the syllabus assumes.
L1-COR-01 requires at least 30 m of cordage rated to 250 kg or better. The length is set by what a full tarp rig plus guy lines actually consumes — students who bring 15 m spend the shelter module short of line and learn the wrong lesson.