Senior citizens in the Philippines are entitled to a 20% discount on public transportation services, including buses, jeepneys, taxis, and trains, as per Republic Act 9994. Additionally, they are exempt from the value-added tax (VAT) on these fares. It’s important to present a valid senior citizen ID to avail of these discounts. For specific details on implementation, you may want to check with local transport authorities or review the official guidelines on senior citizen benefits.