It wasn't a football association per se that first came up with the rules for football. It was actually Cambridge University that first came up with the first set of rules (in 1848), and these rules were known as the Cambridge Rules
http://en.wikipedia.org/wiki/Cambridge_Rules
Answer
There are many forms of football the oldest of which Episkyros or Phaininda was played from the 4th Centaury BC in Ancient Greece. However, if you are specifically talking about Soccer, then I can state with absolute certainty that the man who drafted the 'Laws of the game' for 'Soccer' or 'Association football' was a man called Ebenezer Cobb Morley. Ebenezer along with other co-authors agreed the rules at a public house called the Freemasons Tavern in London on 26th October 1863. The rules were based on the earlier Cambridge Rules first drafted in 1848 which themselves were based on earlier attempts to standardise the different forms of football game which had been played in towns and villages in and around the British isles for hundreds of years. Morley became the Football Associations first secretary. He also founded the Barnes Football Club in 1862 which he captained against Richmond football club in the first ever soccer match. The game ended 0-0 but in a return game he scored the first ever goal. He died in 1924 and is buried at a Cemetery on Barnes Common not far from where he drafted the Laws of the game at 26 The Terrace, Barnes, London. A blue plaque commemorating his life's work was placed on the wall of this address by English Heritage in 2009
The International Football Association Board holds a meeting every year to determine approperate alterations to the rules of soccer (offically known as "The Laws of the Game").
The first set of rules for soccer were made by the London Football Association in 1863.
There are 17 laws that outline the rules of Association Football (soccer).
The offside rule was first introduced in soccer in 1863 when the Football Association (FA) in England established the rules of the game.
The offside rule was added to soccer in 1863 when the Football Association in England established the first official rules of the game.
In short: the same rules as every other league. All football leagues are bound by the rules of Association Football, these rules are administered and enforced by FIFA at international level and their own football associations internally.
Soccer rules are codified into the 17 "Laws of the Game" (LotG), which are revised annually by the International Football Association Board (IFAB) and published by FIFA. The Laws change sometimes. You can find the most recent version at the FIFA.com website.
International soccer rules are the same everywhere.
The rules of 'Soccer' (Association football) known as the 'Laws of the Game' were wrote in English by a man called E.C. Morley first secretary of the Football Association in 1863. Any changes to the rules are agreed by the 'International Football Association Board' (IFAB) made up of representatives from the FA (England), SFA (Scotland), WFA, (Wales) IFA (Ireland) and Fédération Internationale de Football Association (FIFA). English is the official language used by these four nations and FIFA.
The root word for soccer is, believe it or not, "Association". The word comes from the English propensity to at "er" to the end of words, and was meant to delineate certain football clubs with varying rules, (such as rugby was being split off as its own sport) and "Association Football", with more stringent rules traditional rules. The word started out as "Assoccer", and very quickly was adapted to "Soccer".
The English/British, The rules of association football were codified in England by the Football Association in 1863.
The same rules as in every country Soccer rules are defined by an international organization. for those who have never heard about it, this organization is called: FIFA