Teams receive three points for a win and one point for a draw.
The top two teams will be automatically promoted to the Premiership.
The teams finishing third, fourth, fifth and sixth will then play off for a third promotion place.
The bottom three teams will be automatically relegated to Nationwide Two.
If two or more teams finish level on points the team with the better goal difference will finish higher.
If two or more teams have the same points and the same goal difference, the team which has scored the higher number of goals will finish higher.
If two or more teams finish level on points, goal difference and goals scored at the end of the season and the championship, a promotion place, play-off place or relegation place is at stake they will then play off to decide who finishes higher.
If two or more teams are level before the end of the season on points, goal difference and goals scored, then alphabetical order will determine the team finishing higher.