OSHA Materials Handling and Storage Standard (29 CFR 1910.176)

Where mechanical handling equipment is used, aisles and passageways must have safe clearance, be kept clear, and be marked where needed. Materials stored in tiers must be stacked, blocked, interlocked and limited in height so they are stable against sliding or collapse. Storage areas must be kept free of materials that create tripping, fire, explosion or pest hazards. Clearance signs must warn of limits, and safe clearance is required for trucks passing over dock boards. It is frequently cited alongside forklift violations.

This standard is the legal basis for most citations about unsafe stacking and blocked aisles in fulfillment centers. During peak, overflow pallets in aisles and floor-stacked cartons stacked too high are common findings. For example, an inspector who sees shrink-wrapped pallets double-stacked with a crushed bottom layer near a pick path can cite the 3PL under 1910.176(b) for unstable storage, even if nothing has fallen yet, so racking and floor-stacking limits should be set and enforced in writing.

• PalletFlat platform for stacking goods
• Floor-LoadedCartons stacked without pallets
• Peak SeasonThe busiest stretch of the year for orders

• OSHA Powered Industrial Trucks Standard (29 CFR 1910.178)1971, amended 1998 · Forklift safety and operator training rules
• OSHA Warehousing National Emphasis Program2023, renewed 2026 · OSHA program targeting warehouses for inspection
• ANSI MH16.11974, current edition 2023 · US specification for steel storage rack design

1. OSHA: 29 CFR 1910.176 Handling materials, general osha.gov