Glossary entry (derived from question below)
English term or phrase:
grandparented rules
Persian (Farsi) translation:
قوانین اولیه / پیروی از قوانین اولیه
- The asker opted for community grading. The question was closed on 2014-03-04 15:54:12 based on peer agreement (or, if there were too few peer comments, asker preference.)
English term
grandparented rules
Proposed translations
Iran
Published Translator,Med&Law Expert, MA
Native in: Persian (Farsi) 
Works in: English to Persian (Farsi), Dari to English, Persian (Farsi) to English, and 3 more.
قوانین اولیه / پیروی از قوانین اولیه
I think If you say پیروی از قوانین اولیه you can use it easier in every paragraph the in which the phrase is used.
United States
Certified Farsi / Dari Translator
Native in: Persian (Farsi)
Works in: Dari to English, English to Dari, Persian (Farsi) to English, and 1 more.
قوانین سابق / قوانین قبلی
"Grandparented rules" allow students to complete their studies following the rules of the programs they were in prior to a particular session. ...
Iran
Detail oriented,Well organized,Committed
Native in: Persian (Farsi)
Works in: English to Persian (Farsi), Persian (Farsi) to English, English to Dari, and 1 more.
کلاس مادر بزرگ و پدر بزرگ یار/آموز
http://www.today.com/id/43845224/ns/today-parenting_and_fami...
Iran
High-quality Farsi (Persian) Services
Native in: Persian (Farsi) 
Works in: English to Persian (Farsi), Persian (Farsi) to English, Dari to English
قوانین غیر معطوف به ماسبق
http://en.wiktionary.org/wiki/grandfather
It is noteworthy that in Canada, there IS retroactive legislation. Please read the following article:
http://www.mohajeran.ca/?p=4007
Also, you can read more about "retroactive legislation" in Canada by searching the term.
However, there are also rules which are not retrospective/retrospective and are "grandparented". Therefore we can consider "grandparented" as an opposite to retrospective/retrospective. Mokhtari Law Dictionary provides "قوانین معطوف به ماسبق" for "retrospective/retrospective laws", based on which we can coin the term "قوانین غیر معطوف به ماسبق" for "grandparented rules".
Iran
Express yourself to your world!
Native in: Azerbaijani , Persian (Farsi)
Works in: English to Azerbaijani, Persian (Farsi) to English, Azerbaijani to English, and 3 more.
نظام قدیم / قوانین زمان ثبت نام / قوانین زمان شروع دوره
Sports:> In sports athletes can only participate in national games as a member of their home country. But grandparented rules allow participants to play not just for their homeland, but also for national teams of their grand fathers or grand mothers.
http://en.wikipedia.org/wiki/Grandfather_rule
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Note added at 5 hrs (2014-02-28 20:59:33 GMT)
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http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=...
https://www.experts123.com/q/what-does-it-mean-to-complete-a-program-under-grandparented-rules.html
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