GITA (Geotechnical Inspection and Testing Authority)
GITA (Geotechnical Inspection and Testing Authority) is the on-site supervisor required under AS 3798:2007 to certify controlled fill placement.
Ask Chalkline about this →A GITA (Geotechnical Inspection and Testing Authority) is the qualified person or organisation appointed to provide on-site supervision and testing of earthworks fill under AS 3798:2007 (Guidelines on earthworks for commercial and residential developments). Under AS 3798, controlled fill (fill placed and compacted under geotechnical supervision) must be certified by a GITA at Level 1 or Level 2 depending on the complexity and risk of the earthworks. Level 1 supervision involves full-time on-site presence during fill placement, compaction testing to Proctor standard, and a written compliance report at completion.
The GITA is not the earthworks contractor: the contractor places and compacts the fill; the GITA independently inspects and tests it. On a residential site, if fill goes under a footing or slab without a GITA compliance report, the site cannot be treated as having controlled fill under AS 2870:2011 (Residential slabs and footings), and the site classification may default to Class P, requiring full engineering design of the foundation.
Also known as: geotechnical authority, Level 1 supervisor (AS 3798 context).
Category: Site preparation / geotechnical.
Related
See also
- Site classification (glossary)
- Soil report (geotech) (glossary)
- Class P site (glossary)
- Reactive soil (glossary)
Last updated: 2026-05-08. Verified: 2026-05-08. Quarterly review for currency.