ISO/WD 25603

Underground mine tailings backfill guidance

General information

Current stage: 20.60 Close of comment period Mar 14, 2026

Originator: ISO

Owner: ISO/TC 82/SC 7 Mine closure and reclamation management

Type: International Standard

Scope

This document provides guidance on standardized methods and procedures for the operation and management of underground tailings backfill systems, as well as the associated environmental, social, and governance (ESG) requirements.

Life cycle

NOW

IN_DEVELOPMENT
ISO/WD 25603
20.60 Close of comment period
Mar 14, 2026