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”.

Switch and Receptacle Installation Basics

No grandfathers here. When you replace you must upgrade.

Leviton 15 Amp SmartlockPro Tamper Resistant GFCI Outlet with Audible Alert, Light Almond GFTA1-T - The Home Depot

No grandfathers here. When you replace you must upgrade.

2011 nec changes online course chapter 4

What is a Bootleg Ground and Why is it Dangerous?

ELECTRICAL REQUIREMENTS

Chapter 4: Equipment for General Use, Idaho Electrical Code 2017

Move outlet - Old BX Armor Cable w/updated wiring Terry Love Plumbing Advice & Remodel DIY & Professional Forum

Whats a grounding electrode system?

1National Electrical Manufacturers Association 2011 Tamper-Resistant Electrical Receptacles NEC ® Updates The Opportunity for Continued Child Safety. - ppt download

What is a Bootleg Ground and Why is it Dangerous?

NEC Requirements for Receptacles