> For the complete documentation index, see [llms.txt](https://docs.satisfilabs.com/resource-center/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.satisfilabs.com/resource-center/marketing-engine/campaigns/messaging-campaigns/sms-regulations.md).

# SMS Regulations

- [SMS Regulations for India](https://docs.satisfilabs.com/resource-center/marketing-engine/campaigns/messaging-campaigns/sms-regulations/sms-regulations-for-india.md)
- [SMS Regulations for Canada](https://docs.satisfilabs.com/resource-center/marketing-engine/campaigns/messaging-campaigns/sms-regulations/sms-regulations-for-canada.md)
- [SMS/MMS Regulations for USA](https://docs.satisfilabs.com/resource-center/marketing-engine/campaigns/messaging-campaigns/sms-regulations/sms-mms-regulations-for-usa.md)
- [SMS Character Limits & Messaging Units](https://docs.satisfilabs.com/resource-center/marketing-engine/campaigns/messaging-campaigns/sms-regulations/sms-character-limits-and-messaging-units.md)