| B | Beginners | This meeting is focused on the needs of new members of NA. |
| BT | Basic Text | This meeting is focused on discussion of the Basic Text of Narcotics Anonymous. |
| C | Closed | This meeting is closed to non-addicts. You should attend only if you believe that you may have a problem with substance abuse. |
| CL | Candlelight | This meeting is held by candlelight. |
| CS | Children under Supervision | Well-behaved, supervised children are welcome. |
| D | Discussion | This meeting invites participation by all attendees. |
| ES | Espanol | This meeting can be attended by speakers of Spanish. |
| GL | Gay/Lesbian/Transgender | This meeting is focused on the needs of gay, lesbian and transgender members of NA. |
| IL | Illness | This meeting is focused on the needs of NA members with chronic illness. |
| IP | Informational Pamphlet | This meeting is focused on discussion of one or more Informational Pamphlets. |
| IW | It Works -How and Why | This meeting is focused on discussion of the It Works -How and Why text. |
| JT | Just for Today | This meeting is focused on discussion of the Just For Today text. |
| M | Men | This meeting is meant to be attended by men only. |
| NC | No Children | Please do not bring children to this meeting. |
| O | Open | This meeting is open to addicts and non-addicts alike. All are welcome. |
| Pi | Pitch | This meeting has a format that consists of each person who shares picking the next person. |
| RF | Rotating Format | This meeting has a format that changes for each meeting. |
| Rr | Round Robin | This meeting has a fixed sharing order (usually a circle.) |
| SC | Surveillance Cameras | This meeting is held in a facility that has surveillance cameras. |
| SD | Speaker/Discussion | This meeting is lead by a speaker, then opened for participation by attendees. |
| SG | Step Working Guide | This meeting is focused on discussion of the Step Working Guide text. |
| SL | ASL | This meeting provides an American Sign Language (ASL) interpreter for the deaf. |
| Sm | Smoking Permitted | Smoking (of tobacco) is permitted at this meeting. |
| So | Speaker Only | This meeting is a speaker-only meeting. Other attendees do not participate in the discussion. |
| St | Step | This meeting is focused on discussion of the Twelve Steps of NA. |
| Ti | Timer | This meeting has sharing time limited by a timer. |
| To | Topic | This meeting is based upon a topic chosen by a speaker or by group conscience. |
| Tr | Tradition | This meeting is focused on discussion of the Twelve Traditions of NA. |
| TW | Traditions Workshop | This meeting engages in detailed discussion of one or more of the Twelve Traditions of N.A. |
| W | Women | This meeting is meant to be attended by women only. |
| WC | Wheelchair | This meeting is wheelchair accessible. |
| YP | Young People | This meeting is focused on the needs of younger members of NA. |
| OE | Open-Ended | No fixed duration. The meeting continues until everyone present has had a chance to share. |
| BK | Book Study | Approved N.A. Books |
| NS | No Smoking | Smoking is not allowed at this meeting. |
| Ag | Agnostic | Intended for people with varying degrees of Faith. |
| FD | Five and Dime | Discussion of the Fifth Step and the Tenth Step |
| AB | Ask-It-Basket | A topic is chosen from suggestions placed into a basket. |
| ME | Meditation | This meeting encourages its participants to engage in quiet meditation. |
| RA | Restricted Attendance | This facility places restrictions on attendees. |
| QA | Question and Answer | Attendees may ask questions and expect answers from Group members. |
| CW | Children Welcome | Children are welcome at this meeting. |
| CP | Concepts | This meeting is focused on discussion of the twelve concepts of NA. |
| FIN | Finish | finish speaking meeting |
| ENG | English speaking | This Meeting can be attended by speakers of English. |
| PER | Persian | Persian speeking meeting |
| WEB | Online Meeting | This is a meeting that gathers on the Internet. |
| Tag | Tag | This meeting has a format that consists of each person who shares picking the next person. |
| MF | Multiple Formats | This meeting has several formats |