Data and materials availability All data necessary to understand, assess, and extend the conclusions of the manuscript must be available to any reader of Science. All computer codes involved in the creation or analysis of data must also be available to any reader of Science. After publication, all reasonable requests for data and materials must be fulfilled. Any restrictions on the availability of data, codes, or materials, including fees and original data obtained from other sources (Materials Transfer Agreements), must be disclosed to the editors upon submission. If there are any MTAs pertaining to data or materials produced in this research, or that you have agreed to in conducting the research that restrict you from providing data or materials, please describe these and send the editor of your manuscript a copy of these specific MTAs. Fossils or other rare specimens must be deposited in a public museum or repository and available for research.
An inherent principle of publication is that others should be able to replicate and build upon the authors' published claims. Therefore, a condition of publication in a Nature journal is that authors are required to make materials, data and associated protocols promptly available to readers without undue qualifications. Any restrictions on the availability of materials or information must be disclosed to the editors at the time of submission. Any restrictions must also be disclosed in the submitted manuscript, including details of how readers can obtain materials and information. If materials are to be distributed by a for-profit company, this must be stated in the paper.
Data sets must be made freely available to readers from the date of publication, and must be provided to editors and peer-reviewers at submission, for the purposes of evaluating the manuscript.
(No explicit mention of software)
Also see this Nat Methods editorial
Materials and Data Availability. To allow others to replicate and build on work published in PNAS, authors must make materials, data, and associated protocols available to readers. Authors must disclose upon submission of the manuscript any restrictions on the availability of materials or information. Data not shown and personal communications cannot be used to support claims in the work. Authors are encouraged to use SI to show all necessary data. Authors are encouraged to deposit as much of their data as possible in publicly accessible databases. Such deposition may facilitate access to data during the review process and postpublication. Fossils or other rare specimens must be deposited in a museum or repository and be made available to qualified researchers for examination.
Authors must make Unique Materials (e.g., cloned DNAs; antibodies; bacterial, animal, or plant cells; viruses; and algorithms and computer codes) promptly available on request by qualified researchers for their own use. Failure to comply will preclude future publication in the journal. It is reasonable for authors to charge a modest amount to cover the cost of preparing and shipping the requested material. Contact firstname.lastname@example.org if you have difficulty obtaining materials.
Under 'Materials and Methods',
This section should provide enough detail to allow suitably skilled investigators to fully replicate your study. Specific information and/or protocols for new methods should be included in detail. If materials, methods, and protocols are well established, authors may refer to other papers where those protocols are described in detail, but the submission should include sufficient information to be understood independent of these references.
Methods sections of papers with data that should be deposited in a publicly available database should specify where the data have been deposited and provide the relevant accession numbers and version numbers, if appropriate. Accession numbers should be provided in parentheses after the entity on first use. If the accession numbers have not yet been obtained at the time of submission, please state that they will be provided during review. They must be provided prior to publication.
New England Journal of Medicine -- cannot find anything.
Submission of a manuscript to a BioMed Central journal implies that readily reproducible materials described in the manuscript, including all relevant raw data, will be freely available to any scientist wishing to use them for non-commercial purposes. Well established and widely supported databases exist for certain types of data such as nucleic acid sequences, protein sequences, and atomic coordinates; information on which can be found below and in journal instructions for authors and 'about' pages. An increasing number of research funding agencies also now support data sharing in the life sciences.
BioMed Central understands that it is not always possible or appropriate to openly share data, in some biomedical fields, so the 'Availability of supporting data' section is not required, or encouraged, in all journals; please see the journal's information for authors for specific manuscript formatting requirements. We recognize that the decision to mandate data deposition as a condition of publication is a decision best made by the scientific community a journal serves. The 'Availability of supporting data' section is a tool for editors, authors and scientific communities to, at the appropriate time, put data deposition policies into practice.