Advocates for Faith & Freedom, which has long been embroiled in lawsuits over parental rights and religious freedom, created a free, legal opt-out form.

The U.S. Supreme Court ruled on Friday in favor of Christian and Muslim parents in Maryland who sued to keep their elementary school children out of certain classes when storybooks with LGBT characters are read in a high-profile case involving the intersection of religion and LGBT rights.

A Supreme Court decision that allows parents to opt out of storybooks that push one-sided ideology on gender and sexuality has been praised by the U.S. Conference of Catholic Bishops.