% The one example that names no language at all. Everything else in this suite
% loads babel, and a tracked language is what makes tracklang pull in
% glossaries-<lang>.ldf and with it the translator package. Anything in
% regulatory.4ht that reaches for a command of translator therefore works in every
% other document here and is undefined in this one, which is how a call to
% \providetranslation survived in that file until a sibling session read the HTML of
% the manual. It is converted rather than typeset, since regulatory.4ht is only read
% under tex4ht.
%
% It is also the document that shows a language-less one still gets English: the
% shipped language files are loaded whatever the document speaks, so the headings
% and the reference below are worded and nothing is reported.
\documentclass[12pt]{article}
\usepackage{regulatory}

\newcommand\translation[2]{#1}

\begin{document}
    \article{Duration}\label{art:duration}
    \begin{paras}
        \item \label{par:start} This agreement takes effect on the first of January.
        \item As provided in \Aref{par:start}, it is renewed in silence.
        \begin{paras}
            \item \label{pt:notice} Notice is given in writing.
            \item As provided in \Aref{pt:notice}, a call does not suffice.
        \end{paras}
    \end{paras}
\end{document}