One of my client requirement is that they wanted to have a checkbox on the login page for new joiner

One of my client requirement is that they wanted to have a checkbox for new joiners for first time login only, A checkbox that takes employees confirmation that they read and agree on company policy/rules etc, A checkbox is required that states "Yes I read and agree with company rules/policy etc". Policy document should also be shown as attachment on the same page, So when new employee logs into system for the first time then only they should check mark the checkbox and confirm that they read and agree employer rules and thereafter whenever they logs into the system it should be a