The housing board plans to expand its Centralised Chute for Recyclables programme to almost 100 blocks in 16 Build-to-Order (BTO) projects across the country.The new separate recycling rubbish chute on each floor will now benefit new blocks in Punggol, Sengkang and Dawson estates. The programme saw encouraging results after being piloted in Choa Chu Kang and Punggol.But the plan to implement the project in more blocks will depend on maintenance requirements and technical feasibility, as well as on whether HDB comes up with a more efficient and cost-effective design, a HDB spokesman said. The programme was started in 2006 in the common area of each floor in Choa Chu Kang.The system frees residents from pre-sorting their recyclables as this will now be done at a sorting facility. The chute also makes recycling household waste more convenient as residents can drop recyclables into the chute at any time, media reports said.Jose Raymond, executive director for the Singapore Environment Council, noted that household recycling will only increase if it is made easier. “While HDB’s objective is to provide affordable housing, it is also important that it recognises that waste management is a national issue that needs coordination from all agencies,” he added.