To make your payment online through Zeffy, click on the Pay Now button below. In 2026, PAS made the transition from Paypal to Zeffy, a service for nonprofits. At checkout, Zeffy will automatically apply an optional contribution. To avoid this charge and donate without additional fees, select “Other” in the drop-down menu and enter “$0” in the contribution box. PAS will face no penalties for this opt-out.