public function is_available() {
		$order          = null;
		$needs_shipping = false;

		// Test if shipping is needed first.
		if ( WC()->cart && WC()->cart->needs_shipping() ) {
			$needs_shipping = true;
		} elseif ( is_page( wc_get_page_id( 'checkout' ) ) && 0 < get_query_var( 'order-pay' ) ) {
			$order_id = absint( get_query_var( 'order-pay' ) );
			$order    = wc_get_order( $order_id );

			// Test if order needs shipping.
			if ( 0 < count( $order->get_items() ) ) {
				foreach ( $order->get_items() as $item ) {
					$_product = $item->get_product();
					if ( $_product && $_product->needs_shipping() ) {
						$needs_shipping = true;
						break;
					}
				}
			}
		}

		$needs_shipping = apply_filters( 'woocommerce_cart_needs_shipping', $needs_shipping );

		// Virtual order, with virtual disabled.
		if ( ! $this->enable_for_virtual && ! $needs_shipping ) {
			return false;
		}

		// Only apply if all packages are being shipped via chosen method, or order is virtual.
		if ( ! empty( $this->enable_for_methods ) && $needs_shipping ) {
			$order_shipping_items            = is_object( $order ) ? $order->get_shipping_methods() : false;
			$chosen_shipping_methods_session = WC()->session->get( 'chosen_shipping_methods' );

			if ( $order_shipping_items ) {
				$canonical_rate_ids = $this->get_canonical_order_shipping_item_rate_ids( $order_shipping_items );
			} else {
				$canonical_rate_ids = $this->get_canonical_package_rate_ids( $chosen_shipping_methods_session );
			}

			if ( ! count( $this->get_matching_rates( $canonical_rate_ids ) ) ) {
				return false;
			}
		}

		return parent::is_available();
	}