Any new entrant will obtain grandfathering rights over the relevant slots once it has operated a route for a predetermined period.
任何新航空公司一旦在事先确定的时期内运行一条航线，都将获得相关航线的终身运营权。
2
There exists a grandfathering clause for ingredients that have been on the market for more than 15 years, but CRN said the way this list functioned "was not agreed upon".
but it warned that the grandfathering protection accorded to existing plans will no longer apply if companies switch insurance providers or significantly change the terms or the cost of coverage.