A plan has been in existence for only one year.
Prior plan doc. calls for all years of service counted for vesting purposes as well as used elapsed time method.
We want to amend it so that for vesting purposes service crediting starts from date of participation and the service counting method will be hours of service method.
My research didn't result exact answer the things I need to be careful in doing so.
Is this permissible to start counting vesting service from the date of participation (at least for those who were hired in the amendment year)?