What is the effective start date of personal details according to the employee's marriage date?

The effective start date of personal details related to an employee's marital status typically reflects the date when the qualifying event occurred, in this case, the date of marriage. If the employee's marriage took place on June 12, 2011, it is logical and standard practice to set that date as the effective start date for any updates regarding personal details associated with marital status. This means that any changes or additions to benefits, tax withholding, or other employment-related matters that depend on marital status would be effective from the date of the marriage onward. Other dates listed do not align with the marriage date, making them incorrect for determining the effective start of personal details tied to that particular event.