There is a somewhat curious report in the Tehran Times which says that Iran is "joining" the ESRB.

One interpretation of this is that the Iranian government will henceforth require that games sold there carry ESRB ratings. Another possibility is that the Iranians are instituting their own rating system and using "ESRB" generically, in the same way that xerox is commonly used to refer to copy machines.

We're guessing the latter, since comments from an Iranian official involved in the project indicate that some sort of local editing process took place. From the Tehran Times:

The managing director of the National Foundation for Computer Games Behruz Minaii announced that Iran will be joining the Entertainment Software Rating Board (ESRB) next week...

Minaii added that the idea of joining ESRB was initiated last year and since then, 20 experts from different religious, psychological, social and media organizations have worked on compiling the project.

“Afterwards, several members of the Guardian Council and scholars of the Qom Seminary and different universities of the country did the final editing,” he remarked.

The first part of the plan is now ready and the next parts will also be completed through establishing this organization, he stated.

We've got a request into the ESRB for clarification as to any potential involvement on their part.

Via: Kotaku