TRA 1986 and Diversification Rules / Stock Split

[Guest vdh2014]

There is an ESOP that contains pre-1986 stock so the rules in effect prior to 1986 Tax Reform Act regarding diversificaiton still apply to that stock. If the employer does a stock split with respect to the pre-1986 stock, are the pre-1986 rules applicable after the stock split or would the sotck issued as a result of the stock split be subject now to the post-1986 rules?

[RLL]

Stock issued as a result of a stock split is treated as having been acquired at the same time as the shares with respect to which the new shares are issued.