29 C.F.R. § 1926.1412
(a) Modified equipment.
(1) Equipment that has had modifications or additions which affect the safe operation of the equipment (such as modifications or additions involving a safety device or operational aid, critical part of a control system, power plant, braking system, load-sustaining structural components, load hook, or in-use operating mechanism) or capacity must be inspected by a qualified person after such modifications/additions have been completed, prior to initial use. The inspection must meet all of the following requirements:
(b) Repaired/adjusted equipment.
(1) Equipment that has had a repair or adjustment that relates to safe operation (such as: A repair or adjustment to a safety device or operator aid, or to a critical part of a control system, power plant, braking system, load-sustaining structural components, load hook, or in-use operating mechanism), must be inspected by a qualified person after such a repair or adjustment has been completed, prior to initial use. The inspection must meet all of the following requirements:
(ii) Where manufacturer equipment criteria are unavailable or inapplicable, the qualified person must:
(c) Post-assembly.
(2) Where manufacturer equipment criteria are unavailable, a qualified person must:
(d) Each shift.
(1) A competent person must begin a visual inspection prior to each shift the equipment will be used, which must be completed before or during that shift. The inspection must consist of observation for apparent deficiencies. Taking apart equipment components and booming down is not required as part of this inspection unless the results of the visual inspection or trial operation indicate that further investigation necessitating taking apart equipment components or booming down is needed. Determinations made in conducting the inspection must be reassessed in light of observations made during operation. At a minimum the inspection must include all of the following:
(e) Monthly.
(3) Documentation.
(i) The following information must be documented and maintained by the employer that conducts the inspection:
(f) Annual/comprehensive.
(2) In addition, at least every 12 months, the equipment must be inspected by a qualified person. Disassembly is required, as necessary, to complete the inspection. The equipment must be inspected for all of the following:
(i) Equipment structure (including the boom and, if equipped, the jib):
(x) Hydraulic, pneumatic and other pressurized hoses, fittings and tubing, as follows:
(xi) Hydraulic and pneumatic pumps and motors, as follows:
(xii) Hydraulic and pneumatic valves, as follows:
(xiii) Hydraulic and pneumatic cylinders, as follows:
(7) Documentation of annual/comprehensive inspection. The following information must be documented, maintained, and retained for a minimum of 12 months, by the employer that conducts the inspection:
(g) Severe service. Where the severity of use/conditions is such that there is a reasonable probability of damage or excessive wear (such as loading that may have exceeded rated capacity, shock loading that may have exceeded rated capacity, prolonged exposure to a corrosive atmosphere), the employer must stop using the equipment and a qualified person must: