North 1 East is the sixth tier of the English rugby union domestic competition, formed in 1987 using the name North Division 2, involving clubs from the north of the country. There was also division known as North East 1 that began in 1987 for clubs based in the north-east but this was a seventh tier league. North Division 2 would later split into two regional divisions, currently known as North 1 East and North 1 West. North 1 East is made up of teams from around the North East and Yorkshire, who play home and away matches throughout a winter season.
Regional 1 South East is a level five league in the English rugby union system. It is one of six leagues at this level. When this division began in 1987 it was known as London Division 1. The format of the league was changed at the beginning of the 2009–10 season following re-organisation by the Rugby Football Union while the name change from National League 3 to Premier was introduced for the 2017–18 season to make it more obvious that it is a regional league. London & South East Premier is the highest regional rugby union league covering London and south east England. Following the RFU Adult Competition Review the league was decreased in size from 14 to 12 and the name changed once more.
Midlands 1 East is an English semi-professional level 6 rugby union regional league for rugby clubs in the eastern region of the Midlands, including sides from Bedfordshire, Derbyshire, Leicestershire, Lincolnshire, Northamptonshire, Nottinghamshire and occasionally Buckinghamshire, Cambridgeshire, Oxfordshire, Staffordshire, Warwickshire and Worcestershire. When this division began in 1987 it was known as Midlands 2 East, and has been restructured several times, most notably as a single division known as Midlands 2 between 1992 and 2000, before regionalising again to its present format.
Counties 1 Southern North is a division at level 7 of the English rugby union system. When league rugby first began in 1987 it was a single league known as Southern Counties but since 1996 the division was split into two regional leagues - Southern Counties North and Southern Counties South. Counties 1 Southern North currently sits at the seventh tier of club rugby union in England and primarily featuring teams based in Berkshire, Buckinghamshire and Oxfordshire.
Surrey 4 is a level 12 English Rugby Union League. It is made up of teams predominantly from Surrey and south-west London. The teams play home and away matches from September through to April. Promoted teams move up to Surrey 3 and since the cancellation of Surrey 5 at the end of the 1991–92 season there has been no relegation as this is the lowest level controlled by the RFU. At the end of the 1999–2000 season, Surrey 4 was cancelled with teams automatically going up to Surrey 3 or dropping out of the league. After a hiatus of four seasons the division was reinstated.
Sussex 1 is an English level 9 Rugby Union League. It is made up of teams predominantly from Sussex. Teams play home and away matches from September through to April. The league champions are automatically promoted up to London 3 South East, while the second placed team plays a promotion playoff against the second placed team from Kent 1. Relegated teams drop to Sussex 2 although in recent season there has been no relegation. Only 1st XV sides can be promoted into London 3 South East.
London 3 South East is an English level 8 Rugby Union League involving club sides from Kent, East Sussex, West Sussex and the south-east London. It is made up of teams predominantly from London, Sussex and Kent. The twelve teams play home and away matches from September through to April. Each year all clubs in the division also take part in the RFU Senior Vase - a level 8 national competition.
The Sussex Rugby Football Union is the society responsible for rugby union in the county of Sussex, England and is one of the constituent bodies of the national Rugby Football Union.
London 2 South West is an English level 7 Rugby Union League. When this division began in 1987 it was known as London 3 South West, changing to its current name ahead of the 2009–10 season. The division is made up of teams predominantly from south-west London, Surrey, and Hampshire. The 12 teams play home and away matches from September through to April. Each year all clubs in the division are also invited to take part in the RFU Intermediate Cup - a level 7 national competition.
London 2 South East is an English level 7 Rugby Union League. When this division began in 1987 it was known as London 3 South East, changing to its current name ahead of the 2009–10 season. The division is made up of teams predominantly from south-east London, Kent, East Sussex and West Sussex. The twelve teams play home and away matches from September through to April. Each year all clubs in the division also take part in the RFU Intermediate Cup - a level 7 national competition.
Sussex 2 is an English level 10 Rugby Union League. It is run by the Sussex Rugby Football Union and contains teams predominantly from West Sussex. The twelve teams play home and away matches from September through to April. Promoted teams move up to Sussex 1 and demoted teams fall to Sussex 3. Up until 2003-04 the league was known as Sussex 2 which was abolished at the end of that season. Sussex Canterbury Jack Intermediate emerged in 2010-11 as the second-tier competition for Sussex with a large number of 2nd, 3rd and 4th teams taking part. The division name changed to Sussex Canterbury Jack Division 2 for the 2016–17 season. A further name change resulted in Sussex Canterbury Jack 2 becoming Sussex 2 Armada Ale for the 2017–18 season.
London 1 North is an English level 6, rugby union league for clubs in London and the south-east of England including sides from Bedfordshire, Buckinghamshire, Cambridgeshire, Essex, north Greater London, Hertfordshire, Norfolk, Suffolk. When this division began in 1987 it was known as London 2 North, changing to its current name ahead of the 2009–10 season.
London 1 South was an English level 6 rugby union regional league for rugby clubs in London and the south-east of England including sides from East Sussex, south Essex, south Greater London, Hampshire, Kent, Surrey and West Sussex. When this division began in 1987 it was known as London 2 South, changing to its current name ahead of the 2009–10 season.
Kent 1 is an English level 9 Rugby Union League and is made up of teams predominantly from south-east London and Kent. The teams play home and away matches from September through to April. The league champions move up to London 3 South East while the runners up play against the runners up of Sussex 1 for the remaining place. Relegated teams drop down to Kent 2.
Eastern Counties 3 is an English level 11 Rugby Union league, currently divided into 3 regional leagues. Promoted teams moved up to the relevant regional divisions in Eastern Counties 2 while since the abolition of Eastern Counties 4 at the end of the 2016–17 season there has been no relegation. For most of its history, Eastern Counties 3 was divided into two regional divisions – north and south – with teams from Cambridgeshire, Norfolk, Suffolk and Essex taking part. A breakaway of Essex teams at the end of the 2002–03 to form a new league would lead to Eastern Counties 3 being abolished by the end of 2003–04 only to return due to a league restructure to cater for more 2nd and 3rd teams.
Sussex 4 is an English level 12 rugby union league traditionally divided into two regional divisions. It is run by the Sussex Rugby Football Union and features teams from this county. Teams play home and away matches from September to April. Promoted teams move up to Sussex Oranjeboom Division 3 and there is no relegation. The division has changed format several times in its history, originally being a regional division before changing to a single division and then back to a regional for the 2016-17 season.
Sussex 3 is an English level 11 Rugby Union League. It is run by the Sussex Rugby Football Union and was originally for teams predominantly from West Sussex until a division reorganization for the 2016-17 meant that clubs from East Sussex would also take part. Promoted teams move up to Sussex 2 while relegated teams drop down to either Sussex Asahi Division 4 East or Sussex Late Red Division 4 West depending on geography. Sussex Oranjeboom 2 West was introduced in 2010–11 and is the equivalent to former division Sussex 3 which had its last season in 2003–04. It changed to its current name of Sussex Oranjeboom Division 3 in 2016–17.
The RFU Intermediate Cup is a rugby union national knockout cup competition in England run by the Rugby Football Union. It is contested by teams at level 7 of the English rugby union system. While the competition is a national one, it is however split into regions until the semi-finals with the final being held at Twickenham Stadium in London. It was first contested in 1997. Presently, the RFU Intermediate Cup is the third most important club cup competition in England, behind the Premiership Rugby Cup and RFU Championship Cup.
The RFU Junior Vase is a rugby union national knockout cup competition in England run by the Rugby Football Union, which has been competed for since 1990. It is mostly contested by 1st XV teams at level 9 of the English rugby union system, although sides as low as level 12 or even outside the league system can sometimes enter. The competition is a national one, but split into regions until the national semi-finals with the final being held at Twickenham Stadium in London. Presently, the RFU Junior Vase is the fifth most important club cup competition in England, behind the Premiership Rugby Cup, RFU Championship Cup, RFU Intermediate Cup and RFU Senior Vase.
Regional 2 South East is an English level 6 rugby union regional league for rugby clubs in London and the south-east of England including sides from East Sussex, south Greater London, Hampshire, Kent, Surrey and West Sussex. When this division began in 1987 it was known as London 2 South, changing to London 1 South ahead of the 2009–10 season. Following the RFU Adult Competition Review the league was decreased in size from 14 to 12 and the name changed once more.
2016–17 Sussex Asahi Division 4 East 
England