def METHOD_NAME(self):
    """ Return the current list of task types
    """
    types = [
        ('Calibration', safe_unicode(_('Calibration')).encode('utf-8')),
        ('Enhancement', safe_unicode(_('Enhancement')).encode('utf-8')),
        ('Preventive', safe_unicode(_('Preventive')).encode('utf-8')),
        ('Repair', safe_unicode(_('Repair')).encode('utf-8')),
        ('Validation', safe_unicode(_('Validation')).encode('utf-8')),
    ]
    return DisplayList(types)