What 29 CFR 1910.138 requires (plain English)
29 CFR 1910.138 requires employers to select and require appropriate hand protection when workers' hands are exposed to hazards such as skin absorption of harmful substances, severe cuts or lacerations, severe abrasions, punctures, chemical burns, thermal burns, and harmful temperature extremes. It is a performance standard: it names the hazards and requires suitable protection rather than prescribing a specific glove.
Because gloves are hazard-specific, selection is the heart of compliance. Chemical hazards require gloves whose material resists the specific chemical, judged by permeation breakthrough time and degradation: information that comes from Section 8 of the chemical's Safety Data Sheet and manufacturer chemical-resistance charts. Cut and puncture hazards call for gloves rated on the ANSI/ISEA 105 cut-level scale (A1 through A9); thermal hazards call for heat- or cold-rated gloves. OSHA directs employers to base selection on an evaluation of the tasks, the hazards, and the performance characteristics of the gloves.
Hand protection is chosen from the 1910.132(d) hazard assessment and is generally employer-paid. It complements, never replaces, engineering and work-practice controls: where a chemical can be enclosed or a cut hazard designed out, that comes first, with gloves as the protection for the residual hazard. There is no general-industry-versus-construction split for hand protection the way there is for eye or head PPE: construction relies on the analogous general PPE requirement in 1926.95.