The Institute of Fundraising is asking its members and other people involved in the profession to give their views on how its codes of fundraising practice could be improved.
From today, people can contact the institute either through an online survey or by email suggesting amendments to its 29 codes.
Each code provides a guide to the law and best practice for different fundraising techniques. The IoF told Third Sector in August it planned to review its codes.
An IoF spokeswoman said internal planning for this was now complete and the external process would begin today and run until March next year.
Sarah Tirrell, policy and codes of practice manager at the IoF, said it was vital that the codes were fit for purpose.
"As part of this review, we’re not looking to make a few quick changes but to benefit longer-term standard-setting in the sector," she said. "The views of individual fundraisers are crucial to the success of making our codes better for everyone, so please do take part in the review process."
Alistair McLean, chief executive of the Fundraising Standards Board, which uses the codes as benchmarks, said it was essential that the codes were of a high standard and appropriate for modern-day fundraising.
"A review of the codes will enable the sector to contribute to their development, flagging up any new areas where guidance is needed and helping build public trust in charities," he said.