Providers of ethics classes in NSW primary schools have responded with outrage to a change to the school enrolment form which removes a clear choice between ethics and scripture.

Bruce Hogan, the chairman of the charity and ethics class provider Primary Ethics, was angered by the change, saying it was a "profound step back".

The form now in use (top) and the one that will replace it.

"We are really disappointed," he said. "This has deliberately eliminated the option for parents to tell the school they would like their child to attend ethics lessons.

"In my view, the Christian lobby group has successfully lobbied Premier Mike Baird. His own personal beliefs and his need to keep Fred Nile on side for the next four years has overridden the rights of parents."