Based on Volleyball age Categories, generally the age groups are as follows: 
18U**: Athletes born between September 1, 2006 and Dec 31, 2007 (16 months)
17U*: Athletes born between September 1, 2007 and Dec 31, 2008 (16 months)

For boys' volleyball in Nova Scotia, the age categories are limited to 14U, 16U and 18U. As such we combine the 17U and 18U age groups.

The focus of the 17U and 18U Program is to optimize fitness preparation, volleyball-specific skills, and position-specific skills and to commit to a pathway which will also optimize performance. Individual and position-specific training is provided to players with training volumes and intensities gradually raised to high levels. Volleyball skills are performed under a variety of competitive conditions during training. More complex team systems are learned. Training should be position specific. (LTAD, Volleyball Canada)