Those watching President Barack Obama’s State of the Union address Tuesday evening might have noticed some Congress members and guests wearing ribbons on their lapels.

Some Congress Members Wear Green Ribbons in During State of the Union Address

(L-R) U.S. Sen. John McCain (R-AZ), U.S. Sen. Charles Schumer (D-NY, and U.S. Sen. Lindsey Graham (R-SC) sit on Capitol Hill on February 12, 2103 in Washington, D.C. Facing a divided Congress, Obama is expected to focus his speech on new initiatives designed to stimulate the U.S. economy. (Photo: Charles Dharapak-Pool/Getty Images)

The green ribbons were worn in honor of the victims of gun violence. ABC News reported that the ribbons were an effort put together by Rep. James Langevin (D-RI), who was himself in an accidental shooting victim. Lauren Fox with U.S. World News noted that the green and silver used on the ribbons represent the colors of Sandy Hook Elementary in Newtown, Conn., where 20 children and six staff members were killed in December. A comment on the Wall Street Journal live blog said the ribbons were provided by the Newtown Action Alliance, a newly formed group focusing on gun violence prevention.

Some Congress Members Wear Green Ribbons in During State of the Union Address

Sen. Elizabeth Warren (D-MA) (L) talks with Rep. Elijah Cummings (D-MD) (R). (Photo: AP/Charles Dharapak-Pool/Getty Images)

Noticeably, Vice President Joe Biden was wearing one such ribbon, while Speaker of the House John Boehner wasn’t.

Some Congress Members Wear Green Ribbons in During State of the Union Address

(Photo: Mark Wilson/Getty Images)

At least 40 victims or family members of victims attended the speech, according to ABC.

If you see some wearing orange pins with the text “Stop Fighting, Start Fixing,” 40 or so Congress members who are part of the bipartisan group No labels are also wearing those, according to ABC.