UL 2996 Ed. 1-2025

In-Ground Outlet Boxes - Published Date: November 24, 2025

1.1 This standard applies to in-ground outlet boxes with integral wiring enclosures, for mounting at finished grade and allows access to wiring device(s) connected to branch circuit(s). An in-ground box is intended to be installed in accordance with:  a) NFPA 70, National Electrical Code;  b) CSA C22.1, Canadian Electrical Code, Part I, Safety Standard for Electrical Installations;  c) Mexico’s Electrical Installations, NOM-001-SEDE.  1.2 In-ground outlet boxes may also accommodate telecommunication-circuit accessories for power-limited circuits.  1.3 This standard provides requirements for in-ground outlet boxes and associated assemblies for the mounting of devices and accessories. In-ground Outlet boxes are suitable for use in locations that provide in-ground drainage. These in-ground outlet boxes may be suitable for pedestrian traffic (“Light Duty” or “Tier 2”)* or pedestrian traffic and occasional nondeliberate vehicular traffic (“Tier 5”)*.  1.4 This standard does not apply to:  a) Boxes for use in hazardous (classified) locations as defined in the NFPA 70, National Electrical Code, CSA C22.1, Canadian Electrical Code, Part I, Safety Standard for Electrical Installations and NOM-001-SEDE Mexico’s Electrical Installations;  b) Junction boxes for Swimming Pools covered by UL 1241 and CSA C22.2 No. 89;  c) Commercial Appliance Outlet Centers covered by UL 891 / CSA C22.2 No. 244 / NMX-J-118/2-ANCE;  d) Products covered by UL 486D / CSA C22.2 No. 198.2 / NMX-J-519-ANCE, Sealed Wired Connectors;  e) Boxes used for infrastructure lighting and traffic lighting, and handhole and manhole boxes and enclosures intended solely for electrical installation and maintenance access;  f) Concrete boxes;  g) In-ground outlet boxes greater than Tier 5 in accordance with SCTE 77 Specification for Underground Enclosure Integrity;  h) Grade-level in-ground enclosures covered by CSA C22.2 No. 344.