Learn Icelandic: Vinnustaðurinn skal tryggja að allur öryggisbúnaðurinn sé tilbúinn. - The workplace shall ensure that all the safety equipment is ready.

Using skulu (here in the 3rd person singular skal) plus the bare infinitive tryggja is the standard way to express formal written commands or obligations in Icelandic. You will see this constantly in rules, contracts, and laws, where in English we would write 'shall'.

Why do we use the subjunctive sé rather than the indicative er in the second half of the sentence?

The verb tryggja (to ensure) expresses an intention, goal, or requirement rather than a simple statement of fact. In Icelandic, stating that someone must ensure a condition is met triggers the subjunctive mood (sé) in the following að clause.

Why does allur pair with the definite noun öryggisbúnaðurinn?

To say 'all the [something]' in Icelandic, you use the adjective allur (inflected to match the noun) followed by the noun with the definite article attached. Since öryggisbúnaður is a masculine singular noun, it takes the masculine singular form allur and the definite suffix -inn.

What is the makeup of the compound word öryggisbúnaðurinn?