Penalty in the end zone

[jimmiececil]

In the July 2002 edition of Referee magazine on page 58 it has the following case play:

Team A's ball, first and 10 on team B's 25 yardline. A1's pass is intercepted in team B's end zone by B2, whose facemask is immediately grabbed and twisted by A3. B2 fumbles and the ball rolls into the field of play and out of bounds at team B's three yardline. What are team B's options?

RULING: Team B would be wise to accept the penalty. By declining the penalty, team B would be choosing the result of the play and would begin a new series at its own three yardline. The penalty, if accepted, is enforced from the end of the run. In the play, that is the spotf at which B2 lost possession. Since that spot is in team B's end zone, the penalty is enforced from team B's 20 yardline. The result is first and 10 for team B from its own 35 yardling(NFHS 10-3-2, 10-3-3b;NCAA 10-2-2c-2)

Here is my problem. This exact same caseplay was in the Fall 2001 edition of the NFHS Officials' Quarterly and its ruling was that "Since the final result of the play is NOT a touchback, the enforcement spot is B's goal line if the penalty is accepted. First and ten for Team B on their 15 yard line.

My question is : Which is the correct ruling?

Thanks to all who respond and please indicate the rule if you find it.

Jim Cecil