Target will place an ad in a memorial section planned for The New York Times, he said.
"We are somewhat quietly honoring those in New York City," he said.
Other retailers putting
A number of chains, particularly those in New York, were planning memorial window displays.
The ad blackouts by retailers are expected to have a minimal impact on sales, as the anniversary falls on a Wednesday, usually a quiet shopping day even though it comes at the peak of the important back-to-school season.
Sears plan to go ahead with sales events planned for the following weekend, the spokeswoman said.