The semester 2021A announcement of opportunity for observing time at the Isaac Newton Group of Telescopes on La Palma can be found at:
http://www.ing.iac.es/astronomy/observing/2021A-AO.pdf
Further details of the proposal submission process can be found at:
http://www.ing.iac.es/astronomy/observing/INGinfo_home.html

Current instrumentation at ING is described at:
http://www.ing.iac.es/astronomy/observing/instruments.html