D.C.’s Whitman-Walker Institute and the Los Angeles LGBT Center are among LGBTQ supportive organizations in eight U.S. cities working with the nation’s three largest blood donation centers on a study to find a way to significantly ease blood donation eligibility for men who have sex with men or MSM.

The study, which is funded by the U.S. Food and Drug Administration, calls for recruiting a total of 2,000 gay and bisexual men in eight U.S.

cities selected for the study to test the reliability of a detailed donor history questionnaire aimed at assessing the individual risk of a gay or bisexual man transmitting HIV if they donate blood.