+# whether the plan supports part_pkg_usageprice add-ons (a specific kind of
+# pre-selectable usage pricing, there's others this doesn't refer to)
+sub can_usageprice { 0; }
+
+# the delay start date if present
+sub delay_start_date {
+ my $self = shift;
+
+ my $delay = $self->delay_start or return '';
+
+ # avoid timelocal silliness
+ my $dt = DateTime->today(time_zone => 'local');
+ $dt->add(days => $delay);
+ $dt->epoch;
+}
+