Partial write protection for SD cards

I am familiar enough with eMMC features as there is a great deal of documentation about them. I understand that SD cards have permanent write protection, temporary write protection, and even password-based protection, but these seem to require special equipment to use (strikes me as somewhat stupid for OEMs not to implement this since they use the same exact contacts). eMMCs—and MMCs, as far as I know—support the ability to make certain regions write-protected, so something like a bootloader can be safe against accidental corruption. Do SD cards have this same or similar functionality? If they do, does this include power-on write protection, wherein a lock, when set, will last for as long as power is provided to the card?