If runway centre line lights are installed on a runway with a length of 1800 m or more, they shall have the following colours on the last 900 m:
White from 900 m to 300 m and red from 300 m to the runway end
White from 900 m to 300 m and alternate red and white from 300 m to the runway end
Alternate red and white from 900 m to 300 m and red from 300 m to the runway end
Alternate red and white from 900 m to 300 m and white from 300 m to the runway end