I'll try to give you an overview of the sexual harassment regime that exists right now on the Hill, focusing on the House of Commons.
First of all, there is the Code of Conduct for Members of the House of Commons: Sexual Harassment, which is appended to the Standing Orders and applies to members of Parliament. This is the code that was developed in the previous Parliament by the Standing Committee on Procedure and House Affairs, and took effect at the beginning of this Parliament.
Second, there is what is called the House of Commons Policy on Preventing and Addressing Harassment, which was adopted by the Board of Internal Economy on December 9, 2014. This policy applies to all members of Parliament, including House officers, as employers, and to staff employed by members, House officers, and research officers. Furthermore, interns and volunteers, paid or unpaid, are also covered by this policy. The Board of Internal Economy would be the governing body when it comes to this policy.
Beyond that, the House of Commons has its own harassment prevention policy that applies to employees of the House administration solely, and is not, in fact, applicable to members of Parliament.