- 26 Apr 28 Apr 2023 8:00 am 6:00 pm Conference on Arboriculture (Certified Arborist) Changi Civil Service Club
- 27 Apr 29 Apr 2023 8:00 am 6:00 pm Conference on Playground Safety, Play Value and Design (Certified Playground Safety Inspector) Changi Civil Service Club
- 27 Apr 28 Apr 2023 8:00 am 6:00 pm Conference on Horticulture (Certified Practicing Horticulturist) Changi Civil Service Club
- 27 Apr 29 Apr 2023 8:00 am 6:00 pm Green Thumbs, Landscape Professional Conference & Asia Pacific Tree Climbing Competition 2023 Changi Civil Service Club