请教CPP/EI Exemption是什么意思

angel0211

大家好，我才到加拿大上班，税务方面一头雾水。
: o$ T6 t5 x% c' Y
' ^0 B  O+ j0 r! f% }1 w; v# i% t入职时小蜜给我一份CPT1表格填写。"Aplication to Canada Revenue Agency for CPP/EI Exemption". 请问这个表格是申请什么的？是申请不缴CPP/EI吗, 还是其他意思？
  W/ h. r. ~6 M3 B" f$ p" U
表格里有这么一段话: ”XXX must make CPP and EI deductions from workers. However, if you interpret your income to be CPP/EI exempt, you must apply to CRA directly for a ruling on whether your employment is pensionable and/or insurable, or both”
4 b, I4 B' s; q1 W- f“ruling”是什么意思啊？

9 z9 u" ?; @5 e谢谢各位啦！