EN 131 is a multi-part ladder standard: part 1 — types and sizes, part 2 — requirements, testing and marking, part 3 — marking and user instructions, part 4 — single or multiple hinge-joint ladders; further parts cover telescopic ladders and mobile platforms. Since the 2017/2018 revision, the standard distinguishes professional and non-professional (domestic) ladders — both rated at 150 kg but tested to different strength and durability levels. Use professional ladders at work.
Leaning ladders, stepladders, combination (hinged) ladders and platform stepladders are set up differently and carry different risks, so record the ladder type, not just “ladder”. Leaning ladders are set at roughly 65–75°, and the top should extend at least 0.75 m above the landing edge. Wide ladders longer than 3 m usually require a stabiliser bar.
A competent person is someone appointed by the employer who knows the standard, the manufacturer's instructions and the assessment criteria — there is no separate statutory “ladder inspection licence” in Poland. A pre-use check (visual, by the user) differs from a periodic inspection (documented) and an ad hoc check after an event such as a fall or a forklift impact — see forklift inspections.
Withdrawal criteria are the conditions that send a ladder for repair or scrapping: a cracked or bent rung, a deformed stile, a missing anti-slip foot, a faulty lock or spreader, illegible marking. Tag a withdrawn ladder and move it to a designated area; linking the inspection date to an asset tag is easiest — see QR codes and NFC in safety.