The Child Abuse Registry is kept for I think 25 years.
You can apply for a review to have your name removed.
See this in section 76 of the Act
Don't forget to check it's accompanying regulations (details in another Sub-Act)
Hearing re registered person
76. (1) In this section,
“hearing” means a hearing held under clause (4) (b).
Notice to registered person
(2) Where an entry is made in the register, the Director shall forthwith give written notice to each registered person referred to in the entry indicating that,
(a) the person is identified in the register;
(b) the person or the person’s solicitor or agent is entitled to inspect the information in the register that refers to or identifies the person; and
(c) the person is entitled to request that the Director remove the person’s name from or otherwise amend the register.
Request to amend register
(3) A registered person who receives notice under subsection (2) may request that the Director remove the person’s name from or otherwise amend the register.
Director’s response
(4) On receiving a request under subsection (3), the Director may,
(a) grant the request; or
(b) hold a hearing, on ten days written notice to the parties, to determine whether to grant or refuse the request.
Delegation
(5) The Director may authorize another person to hold a hearing and exercise the Director’s powers and duties under subsection (8).
Procedure
(6) The
Statutory Powers Procedure Act applies to a hearing and a hearing shall be conducted in accordance with the prescribed practices and procedures.
Hearing
(7) The parties to a hearing are,
(a) the registered person;
(b) the society that verified the information referring to or identifying the registered person; and
(c) any other person specified by the Director.
Director’s decision
(8) Where the Director determines, after holding a hearing, that the information in the register with respect to a registered person is in error or should not be in the register, the Director shall remove the registered person’s name from or otherwise amend the register, and may order that the society’s records be amended to reflect the Director’s decision.
Appeal to Divisional Court
(9) A party to a hearing may appeal the Director’s decision to the Divisional Court.
Hearing private
(10) A hearing or appeal under this section shall be held in the absence of the public and no media representative shall be permitted to attend.
Publication
(11) No person shall publish or make public information that has the effect of identifying a witness at or a participant in a hearing, or a party to a hearing other than a society.
Record inadmissible: exception
(12) The record of a hearing or appeal under this section shall not be admitted into evidence in any other proceeding except a proceeding under clause 85 (1) (d) (confidentiality of register) or clause 85 (1) (e) (amendment of society’s records). R.S.O. 1990, c. C.11, s. 76.
Note: On a day to be named by proclamation of the Lieutenant Governor, section 76 is repealed by the Statutes of Ontario, 1999, chapter 2, section 28. See: 1999, c. 2, ss. 28, 38.