Which of the following scenarios is not true?

$$ ?The employee and employer can "contract out" of employment $/$ labour standards when they are both in agreement

$$ ?The union collective agreement takes precedence over employment $/$ labour standards as long as they meet the minimum standards

$$ ?Unless there is a collective agreement, the minimum employment $/$ labour standards must be provided

$$ ?The organization's policy prevails in situations where policies exceed requirements of employment $/$ labour standards