406.4(D)(2) Non-Grounding-Type Receptacles.
When replacing a non-grounding type receptacle with a GFCI type, the receptacle or the cover plate must be marked “No equipment ground”.
NEC Requirements for Receptacles
Electrical Wiring Residential 18th Edition (PDFDrive) - Part43, PDF, Ac Power Plugs And Sockets
No grandfathers here. When you replace you must upgrade.
Replacing Two-Wire Receptacles
What is a Bootleg Ground and Why is it Dangerous?
EOC Question ch06.doc - CHAPTER 6 REVIEW 1. Explain the operation of a ground-fault circuit interrupter. Why are GFCI devices used? Where are GFCI
NEC 2023 Basics: Equipment Grounding Conductor Continuity and Connections - Technical Articles
No grandfathers here. When you replace you must upgrade.
What Is the Ground (Earth) Wire For? - Dengarden
NEC 406.3 406.3 General Installation Requirements. Receptacle
Does replacing unrounded outlets with GFCI outlets make them grounded and safe? - Quora
NEC Changes Around the Corner, Part 4 - Electrical Contractor Magazine
10-3 NONGROUNDING RECEPTACLES - 406.4(D)(2), (D)(3), AND Ex.
AFCI Safety Receptacles