Cannabis is now a Class B drug again.
There are also new plans to bring in a '3 strike system' (for England and Wales) that the Police will use. It goes something like this:
| 1st Time Offender - |
a warning will be given. |
| 2nd Time Offender |
an £80 on the spot fine will be given |
| 3rd Time Offender |
person would be arrested, face an unlimited fine and up to 5 years in prison |
Cannabis users over 18 are still expected to get a warning for possession on their first offence.
If caught for a second time they will get a penalty notice and a £80 fine.
A third offence - or strike - will mean arrest followed by either release without charge, a caution or prosecution with possible jail time.
There will be no change in the law for under-18s with police likely to either issue a warning or a caution depending on the circumstances.
In Scotland and Northern Ireland the system is different.
Anyone found with cannabis will continue to be reported to the Procurator Fiscal of the Public Prosecution Service where a decision to prosecute or issue a caution will be made.
In reality drug charities have told Newsbeat that police may still decide to issue an informal warning depending on the severity of the offence.
Info from bbc.co.uk/newsbeat