SRFI 0: Feature-based conditional expansion construct, using cond-expand - see Syntax and conditional compilation.

SRFI 1: List Library, if (require 'list-lib).

SRFI 2: AND-LET*: an AND with local bindings, a guarded LET* special form.

SRFI 4: Homogeneous numeric vector datatypes - see Uniform vectors.

SRFI 6: Basic String Ports - see Ports.

SRFI 8: receive: Binding to multiple values - see Multiple values.

SRFI 9: Defining Record Types, using define-record-type - see Record types.

SRFI 11: Syntax for receiving multiple values, using let-values and let*-value - see Multiple values.

SRFI 13: String Library. Needs some polishing.

SRFI 14: Character-set Library - see Character sets.

SRFI 16: Syntax for procedures of variable arity, using case-lambda.

SRFI 17: Generalized set! - see Locations.

SRFI 23: Error reporting mechanism, using error - see Exceptions.

SRFI 25: Multi-dimensional Array Primitives - see Arrays.

SRFI 26: Notation for Specializing Parameters without Currying - see Procedures.

SRFI 28: Basic Format Strings - see Format.

SRFI 30: Nested Multi-line Comments.

SRFI 37: args-fold - a program argument processor, if (require 'args-fold).

SRFI 39: See Parameter objects.

SRFI 41: Streams - see Streams.

SRFI 45: Primitives for Expressing Iterative Lazy Algorithms - see Lazy evaluation.

SRFI 62: S-expression comments.

SRFI 64: A Scheme API for test suites.

SRFI 69: Basic hash tables - see Hash tables.

SRFI 88: Keyword objects - see Keywords.

SRFI 95: Sorting and Merging.

SRFI 97: Names for SRFI Libraries.