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。
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& _% N# B2 v8 I' K4 |! J2 U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？
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1 C: K( A, D( }. r6 N2 t+ g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”
3 x/ T- }+ n- }5 S- s# g9 A8 S' d“ruling”是什么意思啊？
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, d! T% Q8 |4 g( n9 G/ f谢谢各位啦！