\documentclass[UKenglish, 11pt]{uiobrev}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{babel, times}
\name{The Author}
\begin{document}
\begin{letter}{A Recipient\\ Anywhere}
\opening{Official UiO letters}
In 2022, the University of Oslo (UiO) defined a new graphics
standard. This document class named \emph{uiobrev} implements
the new layout for official UiO letters.
\bigskip
For a complete user's guide to this document class, see
\textsf{\emph{https://www.mn.uio.no/ifi/tjenester/it/hjelp/latex/uiobrev-guide.pdf}}.
\closing{Yours sincerely,}
\end{letter}
\end{document}
