The tank of a wall-mounted toilet is inside the wall behind it, so it uses the depth of the wall to reduce how far it protrudes into the room. For the carrier system inside the wall, you can get one that either fits into a wall with 2-by-6-inch studs or one that recesses into a wall with standard 2-by-4 studs. This is an example of a contemporary bathroom in New York.
Payment Card Industry Data Security Standard. The Payment Card Industry Data Security Standard (PCI DSS) is a proprietary information security standard for organizations that handle branded credit cards from the major card schemes including Visa, MasterCard, American Express, Discover, and JCB.
1 Best Practices to Protect the Cardholder Data Environment and Achieve PCI  ... Payment Application Data Security Standard (PA-DSS) is a set of requirements that are intended to help software vendors develop secure payment applications that support PCI DSS compliance.