Are outlet covers necessary? Look at the outlet first: the answer may already be built in

The 10-second check

Walk to any outlet in the child's room and look at the plastic face between the two sockets. Tamper- resistant receptacles are marked with the letters TR, molded or printed, usually small and right in the middle. Leviton's product page for its T5325 puts it plainly: the TR symbol on the strap assures the receptacle meets the latest NEC requirements. Check a few outlets in different rooms; a house rewired in stages can have both kinds. If they all say TR, most of this hub is optional for you, and the money is better spent on furniture anchors.

What a tamper-resistant outlet does

Inside a TR receptacle, a pair of spring-loaded shutters covers the contacts. They open only when both prongs of a plug push on both shutters at the same time. A hairpin, a key or a fork pushed into one slot meets a shutter that does not move. ESFI, the Electrical Safety Foundation International, cites about 2,400 children a year treated for outlet injuries in the era before TR receptacles were standard; the shutters are the engineering answer to that number, and they never fall out, get lost, or get pried off. The full comparison with covers is in tamper-resistant outlets vs outlet covers.

What the code requires, and since when

The National Electrical Code added the requirement for tamper-resistant receptacles in dwelling units in its 2008 edition, section 406.12, for 15- and 20-amp 125-volt receptacles in new residential construction, and later editions extended it. ESFI reports that 46 of 50 states had adopted the requirement for new construction as of its survey. So a house built after roughly 2008 to 2011, depending on when your state adopted that code edition, should have TR outlets throughout. A house from 1995 will not, unless it has been rewired. Building codes are local and adoption varies, which is why the two-letter check beats guessing from the build year.

What a TR outlet does not cover

Two things. First, a plug that is in use: the shutters are open around the prongs, and a toddler can pull the plug halfway out and touch the exposed blade. For outlets with a lamp, a phone charger or the TV plugged in, an in-use box cover locks the plug in; see best outlet covers for plugs in use. Second, the cord itself, which is a strangulation and a pull-things-down hazard the outlet has nothing to do with; see how to babyproof cords. A TR outlet solves the fork-in-the-socket problem. It does not solve the kitchen.

If you don't have TR outlets

The best fix is the same one the code uses: replace the outlets with TR receptacles. Each costs a few dollars, and swapping one is a fifteen-minute job with the breaker off for anyone comfortable with a screwdriver and a voltage tester; an electrician will do a house in a morning. If wiring is not on the table, a self-closing cover plate replaces the wall plate with one screw and springs a shutter over the slots whenever a plug comes out. Plug inserts are the cheapest and the weakest option, because a removed insert is a small hard object; the trade-offs are in plug inserts vs sliding outlet covers, and everything is ranked in best outlet covers for babyproofing.

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