Picked this from the Gov site
3.1 Wood
Burning wet wood can result in at least twice the amount of smoke emissions than that produced when seasoned or dry wood is burned. When wet wood is burned, the heat output is significantly reduced, and chemicals build up on the inside of the stove and chimney, which increases the risk of chimney fires. We want to reduce the use of wet wood without preventing people seasoning wet wood at home. Wood sold in smaller quantities is more likely to be used immediately, ie without being dried at home. We proposed to limit the sales of wood sold in smaller sizes of packaging to dry wood only.
There was a range of views on our proposals to restrict the sale of wet wood for domestic burning so that only dry wood can be purchased in smaller volumes. Many respondents felt that all wet wood should be banned from sale. Some respondents considered that the 2m³ cut-off point was too high, and the limit should be set at 1m³. There was some concern among small foresters that our proposals could result in buyouts by the bigger suppliers, leading to unnecessary transportation and kiln drying of wood
We intend to take forward our proposal for a mandatory certification scheme demonstrating that wood sold in volumes under 2m³ is dry (less than 20% moisture). We intend that this will apply from one year from publication of the government response. From this time, sales of wet wood in volumes under 2m³ will be prohibited
Feedback from small wood producers was that they may struggle to meet the 20% requirement straight away. We recognise the long term nature of forestry and woodland planting and management, and we fully support these activities. Given this, small suppliers will have an extra year to comply. The government is minded to consider small foresters to be those producing less than 600m³ a year, as those producing less than this volume may find it difficult to invest in the equipment necessary for seasoning. This is to give them time to season their wood down to the required level or consider changes to their business model. A proportionate approach to enforcement will be taken, with enforcement agencies working with and educating small foresters to support them in meeting the new requirements. We consider that the 2m³ threshold represents the right balance based on the range of opinions received.
In line with the views of most respondents, we intend that the prohibition should be delayed for one year to allow existing stocks to be used up, seasoning instructions should accompany all sales of wet wood, and these should be accompanied with a warning advising that the wood is not suitable to be burnt without appropriate drying. Retailers will be required to store seasoned wood in such a way as to keep it dry.
Further guidance will be provided in due course.