According to the Library of Congress,
The Poet Laureate is appointed annually by the Librarian of Congress and serves from October to May. In making the appointment, the Librarian consults with former appointees, the current Laureate and distinguished poetry critics. The position has existed under two separate titles: from 1937 to 1986 as "Consultant in Poetry to the Library of Congress" and from 1986 forward as "Poet Laureate Consultant in Poetry." The name was changed by an act of Congress in 1985.
The Laureate receives a $35,000 annual stipend funded by a gift from Archer M. Huntington. The Library keeps to a minimum the specific duties in order to afford incumbents maximum freedom to work on their own projects while at the Library. The Laureate gives an annual lecture and reading of his or her poetry and usually introduces poets in the Library's annual poetry series, the oldest in the Washington area, and among the oldest in the United States. This annual series of public poetry and fiction readings, lectures, symposia, and occasional dramatic performances began in the 1940s. Collectively the Laureates have brought more than 2,000 poets and authors to the Library to read for the Archive of Recorded Poetry and Literature.
Each Laureate brings a different emphasis to the position. Joseph Brodsky initiated the idea of providing poetry in airports, supermarkets and hotel rooms. Maxine Kumin started a popular series of poetry workshops for women at the Library of Congress. Gwendolyn Brooks met with elementary school students to encourage them to write poetry. Rita Dove brought together writers to explore the African diaspora through the eyes of its artists. She also championed children's poetry and jazz with poetry events. Robert Hass organized the "Watershed" conference that brought together noted novelists, poets and storytellers to talk about writing, nature and community."
Poet Laureate Consultant in Poetry to the Library of Congress
Consultant in Poetry to the Library of Congress (title of position prior to 1986)