Guidance on the arrangements for relief for site restoration work under parts 2 and 3 of the Landfill Disposals Tax (Wales) Act 2017 (LDTA).
Canllawiau ar y trefniadau rhyddhad ar gyfer gwaith adfer safle o dan rannau 2 a 3 o Ddeddf Treth Gwarediadau Tirlenwi (Cymru) 2017 (DTGT).