What is cross-country course in Nordic Combined?

Section 3: Playing Area

Normal Hill: Hill Size (HS) 85–109 m, with the construction-point distance (w) 75–99 m (ICR 511.1). In-run length, takeoff table angle, and landing slope profile must meet FIS homologation standards.
Large Hill: HS 110–149 m (ICR 511.1). Full FIS homologation certificate required.
Wind screens: netting or barriers along the in-run and landing hill to reduce crosswind effects
Judges’ tower: positioned at the K-point level, perpendicular to the landing slope, housing 5 style judges with clear sightlines
Speed measurement at the takeoff edge and distance measurement (video-based or manual)

Individual Gundersen course: 5 to 15 km raced on 2.0 or 2.5 km laps (ICR 512.1). Course terrain one-third uphill, one-third undulating rolling terrain, one-third varied downhills (ICR 512.4).
5 km course (team relay / women): 2.5 km laps; total climb 150–210 m (ICR 512.1, 512.5.3)
Course must be FIS-homologated with a valid certificate
Course marked with directional arrows, distance markers every 1 km, and competitor information boards

Transition area between jumping hill and cross-country start: athletes change from jumping to skiing equipment. Minimum size to accommodate all competitors simultaneously.
Stadium area includes: cross-country start zone (staggered start positions), finish area, exchange zone (a rectangle 30 m long for the Team Gundersen relay, ICR 515.2.11), electronic timing mats, and spectator viewing areas
Results display board visible from the stadium showing jumping scores and cross-country time gaps
Warm-up area adjacent to the cross-country start with groomed snow lanes

Normal Hill: Hill Size (HS) 85–109 m, with the construction-point distance (w) 75–99 m (ICR 511.1). In-run length, takeoff table angle, and landing slope profile must meet FIS homologation standards.
Large Hill: HS 110–149 m (ICR 511.1). Full FIS homologation certificate required.
Wind screens: netting or barriers along the in-run and landing hill to reduce crosswind effects
Judges’ tower: positioned at the K-point level, perpendicular to the landing slope, housing 5 style judges with clear sightlines
Speed measurement at the takeoff edge and distance measurement (video-based or manual)

Individual Gundersen course: 5 to 15 km raced on 2.0 or 2.5 km laps (ICR 512.1). Course terrain one-third uphill, one-third undulating rolling terrain, one-third varied downhills (ICR 512.4).
5 km course (team relay / women): 2.5 km laps; total climb 150–210 m (ICR 512.1, 512.5.3)
Course must be FIS-homologated with a valid certificate
Course marked with directional arrows, distance markers every 1 km, and competitor information boards

Transition area between jumping hill and cross-country start: athletes change from jumping to skiing equipment. Minimum size to accommodate all competitors simultaneously.
Stadium area includes: cross-country start zone (staggered start positions), finish area, exchange zone (a rectangle 30 m long for the Team Gundersen relay, ICR 515.2.11), electronic timing mats, and spectator viewing areas
Results display board visible from the stadium showing jumping scores and cross-country time gaps
Warm-up area adjacent to the cross-country start with groomed snow lanes